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Parity (physics)

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4031:. The parity is odd for orbitals p, f, ... with ℓ = 1, 3, ..., and an atomic state has odd parity if an odd number of electrons occupy these orbitals. For example, the ground state of the nitrogen atom has the electron configuration 1s2s2p, and is identified by the term symbol S, where the superscript o denotes odd parity. However the third excited term at about 83,300 cm above the ground state has electron configuration 1s2s2p3s has even parity since there are only two 2p electrons, and its term symbol is P (without an o superscript). 5262: 5276: 5382:. As the experiment was winding down, with double-checking in progress, Wu informed Lee and Yang of their positive results, and saying the results need further examination, she asked them not to publicize the results first. However, Lee revealed the results to his Columbia colleagues on 4 January 1957 at a "Friday lunch" gathering of the Physics Department of Columbia. Three of them, 502:-reflections) one can recover the particular parity transformation defined earlier. The first parity transformation given does not work in an even number of dimensions, though, because it results in a positive determinant. In even dimensions only the latter example of a parity transformation (or any reflection of an odd number of coordinates) can be used. 1190: 2999:, one can always take linear combinations of quantum states such that they are either even or odd under parity (see the figure). Thus the parity of such states is ±1. The parity of a multiparticle state is the product of the parities of each state; in other words parity is a multiplicative quantum number. 293:
refers to the fact that if one projects out the phase of each state, where we recall that the overall phase of a quantum state is not observable, then a projective representation reduces to an ordinary representation. All representations are also projective representations, but the converse is not
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Since the orbital momentum changes from zero to one in this process, if the process is to conserve the total parity then the products of the intrinsic parities of the initial and final particles must have opposite sign. A deuteron nucleus is made from a proton and a neutron, and so using the
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is used; the vacuum state is then invariant under parity by construction. The invariance of the action follows from the classical invariance of Maxwell's equations. The invariance of the canonical quantization procedure can be worked out, and turns out to depend on the transformation of the
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By the mid-20th century, it had been suggested by several scientists that parity might not be conserved (in different contexts), but without solid evidence these suggestions were not considered important. Then, in 1956, a careful review and analysis by theoretical physicists
1067: 709:. These are useful in quantum mechanics. However, as is elaborated below, in quantum mechanics states need not transform under actual representations of parity but only under projective representations and so in principle a parity transformation may rotate a state by any 4015:
The overall parity of a many-particle system is the product of the parities of the one-particle states. It is −1 if an odd number of particles are in odd-parity states, and +1 otherwise. Different notations are in use to denote the parity of nuclei, atoms, and molecules.
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Two dimensional representations of parity are given by a pair of quantum states which go into each other under parity. However, this representation can always be reduced to linear combinations of states, each of which is either even or odd under parity. One says that all
4006: 5390:, and R. M. Weinrich, modified an existing cyclotron experiment, and immediately verified the parity violation. They delayed publication of their results until after Wu's group was ready, and the two papers appeared back-to-back in the same physics journal. 164: 486: 5040:, which implies that the final state is antisymmetric. Using the fact that the deuteron has spin one and the pion spin zero together with the antisymmetry of the final state they concluded that the two neutrons must have orbital angular momentum 4176:. As for electrons in atoms, the nucleon state has odd overall parity if and only if the number of nucleons in odd-parity states is odd. The parity is usually written as a + (even) or − (odd) following the nuclear spin value. For example, the 5312:
gauge interaction. Only the left-handed components of particles and right-handed components of antiparticles participate in charged weak interactions in the Standard Model. This implies that parity is not a symmetry of our universe, unless a
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The law of conservation of parity of particles states that, if an isolated ensemble of particles has a definite parity, then the parity remains invariable in the process of ensemble evolution. However this is not true for the
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include O(5/2+), meaning that the spin is 5/2 and the parity is even. The shell model explains this because the first 16 nucleons are paired so that each pair has spin zero and even parity, and the last nucleon is in the
2940:(potential energy invariant with respect to a space inversion, symmetric to the origin), either remain invariable or change signs: these two possible states are called the even state or odd state of the wave functions. 4097:
commutes with the rovibronic (rotation-vibration-electronic) Hamiltonian and can be used to label such states. Electronic and vibrational states of centrosymmetric molecules are either unchanged by the operation
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An alternative way to write the above classification of scalars, pseudoscalars, vectors and pseudovectors is in terms of the representation space that each object transforms in. This can be given in terms of the
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The complete (rotational-vibrational-electronic-nuclear spin) electromagnetic Hamiltonian of any molecule commutes with (or is invariant to) the parity operation P (or E*, in the notation introduced by
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The answers given below are correct for 3 spatial dimensions. In a 2 dimensional space, for example, when constrained to remain on the surface of a planet, some of the variables switch sides.
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By contrast, in interactions that are symmetric under parity, such as electromagnetism in atomic and molecular physics, parity serves as a powerful controlling principle underlying quantum transitions.
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The two major divisions of classical physical variables have either even or odd parity. The way into which particular variables and vectors sort out into either category depends on whether the
707: 664: 386: 5236: 5003: 1185:{\displaystyle {\begin{aligned}\mathbf {L} &=\mathbf {r} \times \mathbf {p} \\{\hat {P}}\left(\mathbf {L} \right)&=(-\mathbf {r} )\times (-\mathbf {p} )=\mathbf {L} .\end{aligned}}} 2760: 2642: 1033: 2461: 2393: 4328: 5122: 3922: 3803: 3739: 3708: 3039: 2673: 2144: 3081: 1518: 1035:(if the mass is constant) equates two vectors, and hence is invariant under parity. The law of gravity also involves only vectors and is also, therefore, invariant under parity. 783: 195:, the weak interaction is chiral and thus provides a means for probing chirality in physics. In her experiment, Wu took advantage of the controlling role of weak interactions in 958: 5612:
Mladen Georgiev (20 November 2008). "Parity non-conservation in β-decay of nuclei: revisiting experiment and theory fifty years after. IV. Parity breaking models". p. 26.
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they argued that the parity of the pion is equal to minus the product of the parities of the two neutrons divided by that of the proton and neutron in the deuteron, explicitly
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corresponds to odd functions. However, when no such symmetry group exists, it may be that all parity transformations have some eigenvalues which are phases other than
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as they are even or odd, respectively. The parity operation involves the inversion of electronic and nuclear spatial coordinates at the molecular center of mass.
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To every particle one can assign an intrinsic parity as long as nature preserves parity. Although weak interactions do not, one can still assign a parity to any
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involves the inversion of the electronic and vibrational displacement coordinates at the nuclear centre of mass. For centrosymmetric molecules the operation
2529: 4200: 2395:, which reverses the parity of a state twice, leaves the spacetime invariant, and so is an internal symmetry which rotates its eigenstates by phases 5715:
Pique, J. P.; et al. (1984). "Hyperfine-Induced Ungerade-Gerade Symmetry Breaking in a Homonuclear Diatomic Molecule near a Dissociation Limit:
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is invariant under parity, we have to prove that the action is invariant and the quantization is also invariant. For simplicity we will assume that
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is no longer part of the continuous symmetry group and the desired redefinition of the parity operator cannot be performed. Instead it satisfies
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Centrosymmetric molecules at equilibrium have a centre of symmetry at their midpoint (the nuclear center of mass). This includes all homonuclear
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In atomic nuclei, the state of each nucleon (proton or neutron) has even or odd parity, and nucleon configurations can be predicted using the
6588: 6223: 5646: 5596: 5419:, suggested that parity may also be violated in the strong interaction. It is predicted that this local parity violation manifests itself by 490:
which also have negative determinant and form a valid parity transformation. Then, combining them with rotations (or successively performing
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true, therefore the projective representation condition on quantum states is weaker than the representation condition on classical states.
5356:. They proposed several possible direct experimental tests. They were mostly ignored, but Lee was able to convince his Columbia colleague 6361: 5075:
The total parity is the product of the intrinsic parities of the particles and the extrinsic parity of the spherical harmonic function
2959:, and the particle state is defined by three quantum numbers: total energy, angular momentum and the projection of angular momentum. 6634: 6611: 6565: 6407:"Observations of the failure of conservation of parity and charge conjugation in meson decays: The magnetic moment of the free muon" 6386: 6007: 5979: 5564: 5539: 5501:
An example of a mass flow rate would the direction and rate, by weight, at which a river moves sediment. It is a composite form of
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The complete electromagnetic Hamiltonian of a centrosymmetric molecule does not commute with the point group inversion operation
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explored, without any evidence, the existence of a two-component massless particle of spin one-half. This idea was rejected by
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because of the effect of the nuclear hyperfine Hamiltonian. The nuclear hyperfine Hamiltonian can mix the rotational levels of
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Kharzeev, D.E.; Liao, J. (2 January 2019). "Isobar collisions at RHIC to test local parity violation in strong interactions".
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by examining the strong interaction reaction that produces it, or through decays not involving the weak interaction, such as
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Zhao, Jie; Wang, Fuqiang (July 2019). "Experimental searches for the chiral magnetic effect in heavy-ion collisions".
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A straightforward extension of these arguments to scalar field theories shows that scalars have even parity. That is,
4041: 1627: 1353: 591: 5157: 5037: 4001:{\displaystyle {\hat {\mathcal {P}}}^{2}\left|\psi \right\rangle =c\,{\hat {\mathcal {P}}}\left|\psi \right\rangle .} 2678: 218:, which has a determinant equal to 1. In a two-dimensional plane, a simultaneous flip of all coordinates in sign is 6780: 6765: 6626: 6603: 2104: 159:{\displaystyle \mathbf {P} :{\begin{pmatrix}x\\y\\z\end{pmatrix}}\mapsto {\begin{pmatrix}-x\\-y\\-z\end{pmatrix}}.} 4671:
must act as one of the internal symmetries of the theory, at most changing the phase of a state. For example, the
54:. In three dimensions, it can also refer to the simultaneous flip in the sign of all three spatial coordinates (a 2956: 286: 6356:] (in Chinese). 江才健 (author/biographer). 時報文化出版企業股份有限公司 (Times Culture Publishing Enterprise). p. 216. 1005: 6785: 6775: 6658: 4821: 4028: 2428: 2360: 1328:
Classical variables whose signs flip when inverted in space inversion are predominantly vectors. They include:
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The parity of the states of a particle moving in a spherically symmetric external field is determined by the
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and the others are merely reversed in sign when the Hamiltonian operator and the parity operator commute:
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with the Hamiltonian. In non-relativistic quantum mechanics, this happens for any scalar potential, i.e.,
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Classical variables, predominantly scalar quantities, which do not change upon spatial inversion include:
1285: 481:{\displaystyle V_{x}:{\begin{pmatrix}x\\y\\z\end{pmatrix}}\mapsto {\begin{pmatrix}-x\\y\\z\end{pmatrix}},} 332: 230: 5378:, Hayward, Hoppes, and Hudson (1957) found a clear violation of parity conservation in the beta decay of 3047: 1497: 748: 301:
of the group. For example, projective representations of the 3-dimensional rotation group, which is the
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Chinowsky, W.; Steinberger, J. (1954). "Absorption of Negative Pions in Deuterium: Parity of the Pion".
5328:, but, since the appropriate concepts had not yet been developed, those results had no impact. In 1929, 5267:
P-symmetry: A clock built like its mirrored image behaves like the mirrored image of the original clock.
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and the quantization conditions remain unchanged under parity, then it follows that every state has
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If one adds to this a classification by parity, these can be extended, for example, into notions of
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In quantum mechanics, wave functions that are unchanged by a parity transformation are described as
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of a physical phenomenon, in that a parity inversion transforms a phenomenon into its mirror image.
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To read the nitrogen atom energy levels, type "N I" in the Spectrum box and click on Retrieve data.
5309: 4310: 4173: 4072: 3007: 2260:{\displaystyle {\hat {\mathcal {P}}}\,\psi {\left(r\right)}=e^{{i\phi }/{2}}\psi {\left(-r\right)}} 282: 176: 169: 5348:
went further, showing that while parity conservation had been verified in decays by the strong or
5261: 4410: 2906: 2876: 2014: 1987: 1959: 1923: 1688: 1661: 1634: 1607: 1580: 1553: 1525: 1469: 1441: 1413: 1385: 1265: 1243: 1221: 1041: 6790: 6739: 6534: 6508: 6481: 6371: 6184: 6055: 5814: 5770: 5613: 5472: 5462: 5416: 5301: 4458: 4400:{\displaystyle \mathbf {Pa} (\mathbf {p} ,\pm )\mathbf {P} ^{+}=\mathbf {a} (-\mathbf {p} ,\pm )} 4177: 1882: 1289: 723: 3748: 3653: 3624: 3558: 3489: 3295: 3203: 2398: 2350:{\displaystyle {\hat {\mathcal {P}}}^{2}\,\psi {\left(r\right)}=e^{i\phi }\psi {\left(r\right)}} 875: 791: 309:
SU(2). Projective representations of the rotation group that are not representations are called
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The projective representations of any group are isomorphic to the ordinary representations of a
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Critchley, A. D. J.; et al. (2001). "Direct Measurement of a Pure Rotation Transition in H
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refers to its polarization state. This is equivalent to the statement that the photon has odd
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counting how many fermions are in a state. Since all particles in the Standard Model satisfy
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functions, while those that change sign under a parity transformation are odd functions.
6522: 6461: 6424: 6321: 6271: 6204:"The Discovery of the Parity Violation in Weak Interactions and Its Recent Developments" 6088: 6043: 5934: 5868: 5691: 2815: 2788: 6398: 6249: 6203: 6110: 5383: 5345: 5333: 5012: 4672: 4626: 4614:{\displaystyle \mathbf {Pa} (\mathbf {p} )\mathbf {P} ^{+}=\mathbf {a} (-\mathbf {p} )} 4024: 3872: 2937: 2112: 2007: 1979: 1951: 1947: 1912: 1861: 1854: 1828: 1806: 1780: 1754: 1728: 1600: 1335: 3650:
is also an eigenstate of the parity operator; i.e., a non-degenerate eigenfunction of
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aforementioned convention that protons and neutrons have intrinsic parities equal to
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For electronic wavefunctions, even states are usually indicated by a subscript g for
2034: 1378: 710: 506: 278: 184: 17: 994:, scalars and pseudoscalars transform identically, as do vectors and pseudovectors. 6716: 6711: 5457: 5329: 5324:, G. C. McIlwraith, and B. Kurrelmeyer, had in effect reported parity violation in 4676: 4454: 4194: 2869:(German: odd). For example, the lowest energy level of the hydrogen molecule ion (H 1461: 1061: 362: 6469: 6210:, Lecture Notes in Physics, vol. 746, Tokyo: Springer Japan, pp. 43–70, 4663:
Applying the parity operator twice leaves the coordinates unchanged, meaning that
2601:{\displaystyle {\hat {\mathcal {P}}}'\equiv {\hat {\mathcal {P}}}\,e^{-{iQ}/{2}}} 6215: 5942: 4246:{\displaystyle {\hat {\mathcal {P}}}\left|0\right\rangle =\left|0\right\rangle } 211: 6530: 5876: 3860:{\displaystyle {\hat {\mathcal {P}}}|\psi \rangle =c\left|\psi \right\rangle ,} 6693: 6683: 5700: 5675: 5477: 5452: 5325: 4927: 4804:
then this element need not exist and such a redefinition may not be possible.
4641: 3890: 3552:, then atomic dipole transitions only occur between states of opposite parity. 3041: 2945: 2526:
is part of this U(1) and so is also a symmetry. In particular, we can define
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All masses, charges, coupling constants, and other scalar physical constants,
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The wave functions of a particle moving into an external potential, which is
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and so quantum states may transform not only as tensors but also as spinors.
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can always be constructed by multiplying it by an internal symmetry such as
6602:. Cambridge Monographs on Particle Physics, Nuclear Physics and Cosmology. 5950: 2098: 6706: 6643: 4922: 4862: 4064: 1433: 248: 215: 4079:. For centrosymmetric molecules, the point group contains the operation 6180: 6143: 6051: 5300:, it is violated in weak interactions, and perhaps, to some degree, in 5297: 5033: 5006: 4818: 4637: 4630: 4068: 623:, there are two irreducible representations: one is even under parity, 33: 5432: 4921:
has negative parity. They studied the decay of an "atom" made from a
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which is not to be confused with the parity operation. The operation
1798: 310: 260: 4851:, then it can be redefined to give a new parity operator satisfying 6513: 6139:"For one tiny instant, physicists may have broken a law of nature" 5618: 5589:
Atomic spectroscopy. Introduction of theory to Hyperfine Structure
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Effect of spatial inversion on some variables of classical physics
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of atomic isotopes to establish the chirality of the weak force.
4730:. This operator is also not unique in that a new parity operator 5440: 5401: 5394: 4918: 4640:, there is a slight complication because there is more than one 1886: 1772: 1746: 6647: 4756:
To see if the parity operator can always be defined to satisfy
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The Ambidextrous Universe; Left, Right, and the Fall of Parity
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of a continuous U(1) symmetry group of phase rotations, then
6002:. Vol. 4. Cambridge University Press. pp. 124–126. 5411:
had created a short-lived parity symmetry-breaking bubble in
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P-asymmetry: A clock built like its mirrored image that does
4044:) and its eigenvalues can be given the parity symmetry label 5393:
The discovery of parity violation explained the outstanding
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facilities and expertise, so the experiment was done at the
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continuous symmetry group. If the parity operator satisfied
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present in the theory. The desired parity operator would be
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of space is either an odd or even number. The categories of
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so the Majorana neutrinos would have intrinsic parities of
3193:{\displaystyle \langle \varphi |{\hat {X}}|\psi \rangle =0} 5407:
In 2010, it was reported that physicists working with the
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This is true even for a complex scalar field. (Details of
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shell, which has even parity since ℓ = 2 for a d orbital.
4858:. But if the Standard Model is extended by incorporating 3285:{\displaystyle {\bigl |}{\vec {L}},L_{z}{\bigr \rangle }} 2608:, which is also a symmetry, and so we can choose to call 6304:"Experimental test of parity conservation in beta decay" 5317:
exists in which parity is violated in the opposite way.
5415:. An experiment conducted by several physicists in the 2903:
and the next-closest (higher) energy level is labelled
2357:, since an overall phase is unobservable. The operator 2111:
In quantum mechanics, spacetime transformations act on
251:, classical geometrical objects can be classified into 6254:"Question of Parity Conservation in Weak Interactions" 5160: 4313:
parity, and this parity is conserved in any reaction.
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do not need to transform under representations of the
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behave like a mirrored image of the original clock.
4457:can be shown to have odd intrinsic parity, and all 2865:(German: even) and odd states by a subscript u for 5913: 5847: 5803: 5759: 5733: 5230: 5146: 5116: 5067: 5021: 4997: 4633:and antifermions have opposite intrinsic parity.) 4613: 4543: 4441: 4421: 4399: 4301: 4245: 4000: 3916: 3881: 3859: 3797: 3766: 3733: 3702: 3671: 3642: 3613: 3544: 3475: 3340: 3313: 3284: 3221: 3192: 3135: 3107: 3075: 3033: 2991: 2925: 2895: 2850: 2827: 2800: 2777: 2754: 2718: 2667: 2636: 2600: 2518: 2485: 2455: 2417: 2387: 2349: 2259: 2162: 2138: 2060: 2025: 1998: 1970: 1934: 1903: 1870: 1845: 1815: 1789: 1763: 1737: 1699: 1672: 1645: 1618: 1591: 1564: 1536: 1512: 1480: 1452: 1424: 1396: 1369: 1344: 1276: 1254: 1232: 1210: 1184: 1052: 1027: 986: 952: 899: 862: 815: 777: 737: 701: 658: 615: 582: 529: 480: 267:, physical configurations need to transform under 158: 6354:Wu Jianxiong: The first lady of physical sciences 6165:Roy, A. (2005). "Discovery of parity violation". 702:{\displaystyle {\hat {\mathcal {P}}}\phi =-\phi } 659:{\displaystyle {\hat {\mathcal {P}}}\phi =+\phi } 373:) which both transform as vectors under rotation. 5231:{\textstyle {\frac {(-1)(1)^{2}}{(1)^{2}}}=-1~,} 4998:{\displaystyle ~\mathbf {L} ={\boldsymbol {0}}~} 932: 848: 4063:as well as certain symmetric molecules such as 4011:Many-particle systems: atoms, molecules, nuclei 1316:is a different, but intimately related issue. 745:which defines the representation. For a matrix 590:. All Abelian groups have only one-dimensional 6030:(1959). "On the phase factors in inversions". 4122:while the latter are denoted by the subscript 4027:have parity (−1), where the exponent ℓ is the 2719:{\displaystyle {{\hat {\mathcal {P}}}'}^{2}=1} 6659: 5238:from which they concluded that the pion is a 3745:Some of the non-degenerate eigenfunctions of 3600: 3564: 3531: 3495: 3468: 3436: 3403: 3371: 3277: 3245: 3010:(symmetric) under a parity transformation if 222:a parity transformation; it is the same as a 8: 5676:"The symmetry groups of non-rigid molecules" 5559:(4th ed.). Prentice-Hall. p. 355. 5534:(4th ed.). Prentice-Hall. p. 163. 4838:, the discrete symmetry is also part of the 4794:is part of a continuous symmetry group then 3834: 3181: 3150: 3130: 3102: 4706:. Therefore, the parity operator satisfies 305:SO(3), are ordinary representations of the 6666: 6652: 6644: 6347:Wu jian xiong-wu li ke xue de si yi fu ren 5964:Cottingham, W.N.; Greenwood, D.A. (1986). 5320:An obscure 1928 experiment, undertaken by 4110:. The former are denoted by the subscript 1028:{\displaystyle \mathbf {F} =m\mathbf {a} } 214:equal to −1, and hence is distinct from a 6512: 6432: 6329: 6279: 5905: 5900: 5895: 5835: 5831: 5821: 5816: 5791: 5787: 5777: 5772: 5751: 5746: 5725: 5720: 5699: 5633:Bransden, B. H.; Joachain, C. J. (2003). 5617: 5204: 5186: 5161: 5159: 5130: 5102: 5080: 5045: 5014: 4987: 4979: 4974: 4603: 4592: 4583: 4578: 4569: 4558: 4556: 4527: 4509: 4503: 4502: 4487: 4472: 4471: 4469: 4434: 4414: 4412: 4383: 4372: 4363: 4358: 4343: 4332: 4330: 4283: 4281: 4280: 4266: 4265: 4258: 4207: 4205: 4204: 4202: 3973: 3971: 3970: 3969: 3946: 3935: 3933: 3932: 3929: 3903: 3901: 3900: 3898: 3874: 3826: 3815: 3813: 3812: 3810: 3784: 3782: 3781: 3779: 3753: 3752: 3750: 3720: 3718: 3717: 3715: 3689: 3687: 3686: 3684: 3658: 3657: 3655: 3629: 3628: 3626: 3599: 3598: 3587: 3585: 3584: 3570: 3569: 3563: 3562: 3560: 3530: 3529: 3518: 3516: 3515: 3501: 3500: 3494: 3493: 3491: 3467: 3466: 3460: 3442: 3441: 3435: 3434: 3428: 3402: 3401: 3395: 3377: 3376: 3370: 3369: 3358: 3356: 3355: 3353: 3332: 3326: 3300: 3299: 3297: 3276: 3275: 3269: 3251: 3250: 3244: 3243: 3241: 3208: 3207: 3205: 3173: 3162: 3161: 3156: 3148: 3122: 3120: 3094: 3092: 3060: 3049: 3020: 3018: 3017: 3015: 2983: 2979: 2978: 2975: 2917: 2908: 2887: 2878: 2840: 2817: 2790: 2767: 2737: 2735: 2734: 2731: 2704: 2688: 2686: 2685: 2683: 2680: 2654: 2652: 2651: 2649: 2619: 2617: 2616: 2613: 2591: 2586: 2578: 2574: 2569: 2558: 2556: 2555: 2537: 2535: 2534: 2531: 2504: 2498: 2474: 2468: 2456:{\displaystyle {\hat {\mathcal {P}}}^{2}} 2447: 2436: 2434: 2433: 2430: 2406: 2400: 2388:{\displaystyle {\hat {\mathcal {P}}}^{2}} 2379: 2368: 2366: 2365: 2362: 2334: 2322: 2302: 2298: 2292: 2281: 2279: 2278: 2275: 2239: 2229: 2224: 2216: 2215: 2195: 2191: 2180: 2178: 2177: 2175: 2155: 2125: 2123: 2122: 2120: 2049: 2043: 2018: 2016: 1991: 1989: 1963: 1961: 1927: 1925: 1896: 1863: 1838: 1808: 1782: 1756: 1730: 1692: 1690: 1665: 1663: 1638: 1636: 1611: 1609: 1584: 1582: 1557: 1555: 1529: 1527: 1505: 1504: 1499: 1473: 1471: 1445: 1443: 1417: 1415: 1389: 1387: 1362: 1337: 1269: 1267: 1247: 1245: 1225: 1223: 1203: 1170: 1159: 1142: 1120: 1105: 1104: 1095: 1087: 1075: 1071: 1069: 1045: 1043: 1020: 1009: 1007: 970: 968: 963:When the representation is restricted to 915: 877: 831: 793: 758: 750: 730: 676: 674: 673: 671: 633: 631: 630: 628: 607: 603: 602: 599: 569: 568: 559: 548: 546: 545: 542: 521: 517: 516: 513: 439: 403: 394: 388: 111: 75: 67: 65: 6501:Progress in Particle and Nuclear Physics 5505:, and is closely related to the flow of 5308:by expressing the weak interaction as a 168:It can also be thought of as a test for 5522: 5494: 5336:, because it implied parity violation. 1288:are invariant under parity because the 6369: 5970:. Cambridge University Press. p.  5117:{\displaystyle ~\left(-1\right)^{L}~.} 4504: 4473: 4253:, the Hamiltonian is parity invariant 3621:, then a non-degenerate eigenstate of 2755:{\displaystyle {\hat {\mathcal {P}}}'} 2637:{\displaystyle {\hat {\mathcal {P}}}'} 27:Symmetry of spatially mirrored systems 6132: 6130: 6000:The Quantum Theory of Fields Volume 1 4679:symmetries with charges equal to the 4625:are dealt with in the article on the 4429:denotes the momentum of a photon and 3917:{\displaystyle {\hat {\mathcal {P}}}} 3798:{\displaystyle {\hat {\mathcal {P}}}} 3774:are unaffected (invariant) by parity 3734:{\displaystyle {\hat {\mathcal {P}}}} 3703:{\displaystyle {\hat {\mathcal {P}}}} 3034:{\displaystyle {\hat {\mathcal {P}}}} 2668:{\displaystyle {\hat {\mathcal {P}}}} 2139:{\displaystyle {\hat {\mathcal {P}}}} 1262:are vectors, but the magnetic field, 7: 6577:Discrete symmetries and CP violation 6558:Introduction to High Energy Physics 6376:: CS1 maint: ignored ISBN errors ( 3076:{\displaystyle V=V{\left(r\right)}} 1513:{\displaystyle \rho \,\mathbf {v} } 778:{\displaystyle R\in {\text{O}}(3),} 343:) which are rotationally invariant. 6598:Bigi, I. I.; Sanda, A. I. (2000). 5967:An introduction to nuclear physics 5304:. The Standard Model incorporates 2808:under a parity transformation are 1364: 953:{\displaystyle \rho (R)=\det(R)R.} 210:(in any number of dimensions) has 25: 4946:) and a negatively charged pion ( 4763:, consider the general case when 4104:, or they are changed in sign by 3108:{\displaystyle |\varphi \rangle } 2785:. Wave functions with eigenvalue 1218:is a scalar, the electric field, 6345:Caijian, Jiang (1 August 1996). 5292:Although parity is conserved in 5274: 5260: 4988: 4980: 4604: 4593: 4579: 4570: 4562: 4559: 4528: 4488: 4415: 4384: 4373: 4359: 4344: 4336: 4333: 2992:{\displaystyle \mathbb {Z} _{2}} 2644:our parity operator, instead of 2019: 1992: 1964: 1928: 1711:(flow of electromagnetic power). 1693: 1666: 1639: 1612: 1585: 1558: 1530: 1506: 1474: 1446: 1418: 1390: 1292:of an axial vector is a vector. 1270: 1248: 1226: 1171: 1160: 1143: 1121: 1096: 1088: 1076: 1046: 1021: 1010: 907:, the fundamental representation 863:{\displaystyle \rho (R)=\det(R)} 616:{\displaystyle \mathbb {Z} _{2}} 530:{\displaystyle \mathbb {Z} _{2}} 175:All fundamental interactions of 68: 5409:Relativistic Heavy Ion Collider 4966:) in a state with zero orbital 4800:exists, but if it is part of a 4461:to have even intrinsic parity. 2963:Consequences of parity symmetry 2150:, in general acting on a state 6560:. Cambridge University Press. 6137:Muzzin, S.T. (19 March 2010). 5674:Longuet-Higgins, H.C. (1963). 5635:Physics of Atoms and Molecules 5509:oscillations through a medium. 5360:to try it. She needed special 5201: 5194: 5183: 5176: 5173: 5164: 4807:The Standard Model exhibits a 4608: 4597: 4574: 4566: 4538: 4524: 4498: 4481: 4394: 4377: 4354: 4340: 4288: 4271: 4212: 3978: 3940: 3908: 3827: 3820: 3789: 3758: 3725: 3694: 3663: 3634: 3592: 3575: 3523: 3506: 3447: 3382: 3363: 3305: 3256: 3213: 3174: 3167: 3157: 3136:{\displaystyle |\psi \rangle } 3123: 3095: 3025: 2742: 2693: 2659: 2624: 2563: 2542: 2441: 2373: 2286: 2185: 2130: 2107:of parity are one-dimensional. 1164: 1153: 1147: 1136: 1110: 987:{\displaystyle {\text{SO}}(3)} 981: 975: 941: 935: 926: 920: 888: 882: 857: 851: 842: 836: 804: 798: 769: 763: 681: 638: 574: 553: 436: 243:Representation theory of SU(2) 191:by Chinese-American scientist 108: 1: 6470:10.1080/10619127.2018.1495479 5662:NIST Atomic Spectrum Database 4883:, then the discrete symmetry 2115:. The parity transformation, 1284:is an axial vector. However, 285:of rotations, but only under 44:) is the flip in the sign of 6623:The Quantum Theory of Fields 5366:National Bureau of Standards 5350:electromagnetic interactions 4653:Fixing the global symmetries 4648:Parity in the Standard Model 4422:{\displaystyle \mathbf {p} } 3292:of orbital angular momentum 2926:{\displaystyle 1\sigma _{u}} 2896:{\displaystyle 1\sigma _{g}} 2026:{\displaystyle \mathbf {M} } 1999:{\displaystyle \mathbf {H} } 1971:{\displaystyle \mathbf {B} } 1935:{\displaystyle \mathbf {L} } 1700:{\displaystyle \mathbf {S} } 1673:{\displaystyle \mathbf {A} } 1646:{\displaystyle \mathbf {P} } 1619:{\displaystyle \mathbf {D} } 1592:{\displaystyle \mathbf {E} } 1565:{\displaystyle \mathbf {J} } 1537:{\displaystyle \mathbf {F} } 1481:{\displaystyle \mathbf {p} } 1453:{\displaystyle \mathbf {a} } 1425:{\displaystyle \mathbf {v} } 1408:of a particle in three-space 1397:{\displaystyle \mathbf {x} } 1277:{\displaystyle \mathbf {B} } 1255:{\displaystyle \mathbf {j} } 1233:{\displaystyle \mathbf {E} } 1053:{\displaystyle \mathbf {L} } 1002:Newton's equation of motion 823:, the trivial representation 189:National Bureau of Standards 179:, with the exception of the 6556:Perkins, Donald H. (2000). 6216:10.1007/978-4-431-77056-5_4 6119:(rev. ed.). New York: 5943:10.1103/PhysRevLett.86.1725 5848:{\displaystyle ^{2}P_{1/2}} 5804:{\displaystyle ^{2}P_{3/2}} 5427:Intrinsic parity of hadrons 4773:for some internal symmetry 4197:is invariant under parity, 3143:have the same parity, then 2105:irreducible representations 1628:electric displacement field 592:irreducible representations 206:A matrix representation of 6807: 6627:Cambridge University Press 6604:Cambridge University Press 6531:10.1016/j.ppnp.2019.05.001 5877:10.1103/PhysRevLett.52.267 5583:Andrew, A. V. (2006). "2. 5249: 4656: 3767:{\displaystyle {\hat {H}}} 3672:{\displaystyle {\hat {H}}} 3643:{\displaystyle {\hat {H}}} 3614:{\displaystyle {\bigl }=0} 3545:{\displaystyle {\bigl }=0} 3314:{\displaystyle {\vec {L}}} 3222:{\displaystyle {\hat {X}}} 2967:When parity generates the 2418:{\displaystyle e^{i\phi }} 2079:those associated with the 1038:However, angular momentum 900:{\displaystyle \rho (R)=R} 816:{\displaystyle \rho (R)=1} 287:projective representations 277:predicts that states in a 240: 6725: 6702: 6679: 6405:; Weinrich, R.M. (1957). 6208:Nishina Memorial Lectures 6202:Wu, Chien-Shiung (2008), 5701:10.1080/00268976300100501 5591:. Springer. p. 274. 5352:, it was untested in the 4629:, where it is shown that 4193:If one can show that the 4156:mixing) and give rise to 3710:or is changed in sign by 271:of every symmetry group. 237:Simple symmetry relations 6434:10.1103/PhysRev.105.1415 6349: 6331:10.1103/PhysRev.105.1413 5914:{\displaystyle _{2}^{+}} 4152:vibronic states (called 4029:azimuthal quantum number 2950:weak nuclear interaction 2008:auxiliary magnetic field 303:special orthogonal group 6581:Oxford University Press 6281:10.1103/PhysRev.104.254 6097:10.1103/PhysRev.95.1561 5555:Levine, Ira N. (1991). 5530:Levine, Ira N. (1991). 4325:annihilation operator: 4318:quantum electrodynamics 3679:is either invariant to 3321:with z-axis projection 2948:of nuclei, because the 2519:{\displaystyle e^{-iQ}} 717:Representations of O(3) 6674:C, P, and T symmetries 5915: 5849: 5805: 5761: 5735: 5734:{\displaystyle ^{127}} 5421:chiral magnetic effect 5232: 5148: 5118: 5069: 5068:{\displaystyle ~L=1~.} 5038:Fermi–Dirac statistics 5023: 4999: 4917:demonstrated that the 4615: 4545: 4443: 4423: 4401: 4322:canonical quantization 4303: 4247: 4002: 3918: 3883: 3861: 3799: 3768: 3735: 3704: 3673: 3644: 3615: 3546: 3477: 3342: 3315: 3286: 3223: 3194: 3137: 3109: 3077: 3035: 3002:In quantum mechanics, 2993: 2927: 2897: 2852: 2829: 2802: 2779: 2756: 2720: 2669: 2638: 2602: 2520: 2487: 2486:{\displaystyle e^{iQ}} 2457: 2419: 2389: 2351: 2261: 2164: 2140: 2108: 2062: 2061:{\displaystyle T_{ij}} 2027: 2000: 1972: 1936: 1905: 1872: 1847: 1817: 1791: 1765: 1739: 1701: 1674: 1647: 1620: 1593: 1566: 1538: 1514: 1482: 1454: 1426: 1398: 1371: 1346: 1278: 1256: 1234: 1212: 1186: 1054: 1029: 988: 954: 901: 864: 817: 779: 739: 703: 660: 617: 584: 531: 482: 160: 6621:Weinberg, S. (1995). 6575:Sozzi, M. S. (2008). 5916: 5850: 5806: 5762: 5736: 5240:pseudoscalar particle 5233: 5149: 5119: 5070: 5024: 5000: 4616: 4546: 4444: 4424: 4402: 4304: 4302:{\displaystyle \left} 4248: 4003: 3919: 3884: 3862: 3800: 3769: 3736: 3705: 3674: 3645: 3616: 3547: 3478: 3343: 3341:{\displaystyle L_{z}} 3316: 3287: 3224: 3195: 3138: 3110: 3078: 3036: 2994: 2928: 2898: 2853: 2851:{\displaystyle \pm 1} 2830: 2803: 2780: 2778:{\displaystyle \pm 1} 2757: 2721: 2670: 2639: 2603: 2521: 2488: 2458: 2420: 2390: 2352: 2262: 2165: 2163:{\displaystyle \psi } 2141: 2101: 2070:Maxwell stress tensor 2063: 2028: 2001: 1973: 1937: 1917:electromagnetic field 1906: 1904:{\displaystyle \rho } 1873: 1848: 1846:{\displaystyle \rho } 1818: 1792: 1766: 1740: 1702: 1675: 1655:electric polarization 1648: 1621: 1594: 1567: 1548:exerted on a particle 1539: 1515: 1483: 1455: 1427: 1399: 1372: 1370:{\displaystyle \Phi } 1347: 1314:parity transformation 1279: 1257: 1235: 1213: 1211:{\displaystyle \rho } 1198:, the charge density 1187: 1055: 1030: 989: 955: 902: 865: 818: 780: 740: 738:{\displaystyle \rho } 704: 661: 618: 585: 532: 483: 307:special unitary group 161: 38:parity transformation 18:Parity transformation 6771:Quantum field theory 6450:Nuclear Physics News 6121:New American Library 5894: 5815: 5771: 5760:{\displaystyle _{2}} 5745: 5719: 5585:Schrödinger equation 5315:hidden mirror sector 5158: 5147:{\displaystyle ~+1~} 5129: 5079: 5044: 5013: 4973: 4909:In 1954, a paper by 4555: 4468: 4442:{\displaystyle \pm } 4433: 4411: 4329: 4257: 4201: 4189:Quantum field theory 4077:sulphur hexafluoride 3928: 3897: 3873: 3809: 3778: 3749: 3714: 3683: 3654: 3625: 3559: 3490: 3352: 3325: 3296: 3240: 3204: 3147: 3119: 3091: 3048: 3014: 2974: 2907: 2877: 2839: 2816: 2789: 2766: 2730: 2679: 2648: 2612: 2530: 2497: 2467: 2429: 2399: 2361: 2274: 2174: 2154: 2119: 2094:Possible eigenvalues 2042: 2015: 1988: 1960: 1946:of a particle (both 1924: 1895: 1862: 1837: 1807: 1781: 1755: 1749:when an event occurs 1729: 1689: 1662: 1635: 1608: 1581: 1554: 1526: 1498: 1470: 1442: 1414: 1386: 1361: 1336: 1312:given below for the 1302:number of dimensions 1266: 1244: 1222: 1202: 1068: 1042: 1006: 967: 914: 876: 830: 792: 749: 729: 670: 666:, the other is odd, 627: 598: 541: 537:due to the relation 512: 387: 187:conducted at the US 177:elementary particles 64: 6761:Physical quantities 6523:2019PrPNP.107..200Z 6462:2019NPNew..29...26K 6425:1957PhRv..105.1415G 6322:1957PhRv..105.1413W 6272:1956PhRv..104..254L 6089:1954PhRv...95.1561C 6044:1959NCim...14..571F 5935:2001PhRvL..86.1725C 5910: 5869:1984PhRvL..52..267P 5692:1963MolPh...6..445L 5413:quark–gluon plasmas 5302:strong interactions 4718:for some choice of 4174:nuclear shell model 4073:xenon tetrafluoride 3889:is a constant, the 2812:, while eigenvalue 2270:One must then have 1286:Maxwell's equations 998:Classical mechanics 263:of higher rank. In 6740:Symmetry (physics) 6181:10.1007/BF02835140 6052:10.1007/BF02726388 5911: 5897: 5845: 5801: 5757: 5731: 5473:Molecular symmetry 5463:Electroweak theory 5417:STAR collaboration 5400:in the physics of 5228: 5144: 5114: 5065: 5019: 4995: 4905:Parity of the pion 4611: 4541: 4439: 4419: 4397: 4299: 4243: 4178:isotopes of oxygen 4061:diatomic molecules 3998: 3914: 3879: 3857: 3795: 3764: 3731: 3700: 3669: 3640: 3611: 3542: 3473: 3338: 3311: 3282: 3219: 3190: 3133: 3105: 3073: 3031: 2989: 2923: 2893: 2848: 2828:{\displaystyle -1} 2825: 2801:{\displaystyle +1} 2798: 2775: 2752: 2716: 2665: 2634: 2598: 2516: 2483: 2453: 2415: 2385: 2347: 2257: 2160: 2136: 2109: 2058: 2023: 1996: 1968: 1932: 1901: 1883:electric potential 1868: 1843: 1813: 1787: 1761: 1735: 1697: 1680:, electromagnetic 1670: 1643: 1616: 1589: 1562: 1534: 1510: 1478: 1450: 1422: 1394: 1367: 1342: 1274: 1252: 1230: 1208: 1182: 1180: 1050: 1025: 984: 950: 897: 860: 813: 775: 735: 724:group homomorphism 699: 656: 613: 580: 527: 478: 469: 430: 156: 147: 102: 6781:Conservation laws 6766:Quantum mechanics 6748: 6747: 6590:978-0-19-929666-8 6225:978-4-431-77055-8 5680:Molecular Physics 5648:978-0-582-35692-4 5598:978-0-387-25573-6 5557:Quantum Chemistry 5532:Quantum Chemistry 5224: 5211: 5143: 5134: 5110: 5084: 5061: 5049: 5022:{\displaystyle n} 4994: 4978: 4911:William Chinowsky 4802:discrete symmetry 4675:has three global 4291: 4274: 4215: 3981: 3943: 3911: 3882:{\displaystyle c} 3823: 3792: 3761: 3728: 3697: 3666: 3637: 3595: 3578: 3526: 3509: 3450: 3385: 3366: 3308: 3259: 3231:position operator 3216: 3170: 3028: 2952:violates parity. 2745: 2696: 2662: 2627: 2566: 2545: 2444: 2376: 2289: 2188: 2133: 2089:Quantum mechanics 1871:{\displaystyle V} 1816:{\displaystyle P} 1790:{\displaystyle E} 1764:{\displaystyle m} 1738:{\displaystyle t} 1345:{\displaystyle h} 1113: 973: 761: 684: 641: 577: 556: 505:Parity forms the 299:central extension 265:classical physics 197:radioactive decay 16:(Redirected from 6798: 6668: 6661: 6654: 6645: 6640: 6617: 6594: 6571: 6543: 6542: 6516: 6496: 6490: 6489: 6445: 6439: 6438: 6436: 6419:(4): 1415–1417. 6395: 6389: 6381: 6375: 6367: 6342: 6336: 6335: 6333: 6316:(4): 1413–1415. 6292: 6286: 6285: 6283: 6242: 6236: 6235: 6234: 6232: 6199: 6193: 6192: 6162: 6156: 6155: 6153: 6151: 6134: 6125: 6124: 6107: 6101: 6100: 6083:(6): 1561–1564. 6070: 6064: 6063: 6032:Il Nuovo Cimento 6020: 6014: 6013: 5996:Weinberg, Steven 5992: 5986: 5985: 5961: 5955: 5954: 5929:(9): 1725–1728. 5920: 5918: 5917: 5912: 5909: 5904: 5887: 5881: 5880: 5854: 5852: 5851: 5846: 5844: 5843: 5839: 5826: 5825: 5810: 5808: 5807: 5802: 5800: 5799: 5795: 5782: 5781: 5766: 5764: 5763: 5758: 5756: 5755: 5740: 5738: 5737: 5732: 5730: 5729: 5712: 5706: 5705: 5703: 5671: 5665: 5659: 5653: 5652: 5637:(2nd ed.). 5630: 5624: 5623: 5621: 5609: 5603: 5602: 5580: 5571: 5570: 5552: 5546: 5545: 5527: 5510: 5499: 5397: 5354:weak interaction 5306:parity violation 5294:electromagnetism 5278: 5264: 5246:Parity violation 5237: 5235: 5234: 5229: 5222: 5212: 5210: 5209: 5208: 5192: 5191: 5190: 5162: 5153: 5151: 5150: 5145: 5141: 5132: 5123: 5121: 5120: 5115: 5108: 5107: 5106: 5101: 5097: 5082: 5074: 5072: 5071: 5066: 5059: 5047: 5028: 5026: 5025: 5020: 5004: 5002: 5001: 4996: 4992: 4991: 4983: 4976: 4968:angular momentum 4965: 4964: 4963: 4962: 4955: 4954: 4945: 4943: 4942: 4935: 4934: 4915:Jack Steinberger 4900: 4893: 4891: 4886: 4882: 4871: 4857: 4855: 4850: 4848: 4843: 4837: 4816: 4811:symmetry, where 4810: 4799: 4798: 4793: 4789: 4788: 4785: 4781: 4776: 4772: 4771: 4767: 4762: 4760: 4752: 4746: 4742: 4738: 4733: 4729: 4725: 4721: 4717: 4712: 4705: 4696: 4687: 4670: 4669: 4620: 4618: 4617: 4612: 4607: 4596: 4588: 4587: 4582: 4573: 4565: 4550: 4548: 4547: 4542: 4531: 4517: 4516: 4508: 4507: 4491: 4477: 4476: 4453:. Similarly all 4451:intrinsic parity 4448: 4446: 4445: 4440: 4428: 4426: 4425: 4420: 4418: 4406: 4404: 4403: 4398: 4387: 4376: 4368: 4367: 4362: 4347: 4339: 4308: 4306: 4305: 4300: 4298: 4294: 4293: 4292: 4287: 4282: 4276: 4275: 4267: 4252: 4250: 4249: 4244: 4242: 4228: 4217: 4216: 4211: 4206: 4007: 4005: 4004: 3999: 3994: 3983: 3982: 3977: 3972: 3962: 3951: 3950: 3945: 3944: 3939: 3934: 3923: 3921: 3920: 3915: 3913: 3912: 3907: 3902: 3888: 3886: 3885: 3880: 3866: 3864: 3863: 3858: 3853: 3830: 3825: 3824: 3819: 3814: 3804: 3802: 3801: 3796: 3794: 3793: 3788: 3783: 3773: 3771: 3770: 3765: 3763: 3762: 3754: 3740: 3738: 3737: 3732: 3730: 3729: 3724: 3719: 3709: 3707: 3706: 3701: 3699: 3698: 3693: 3688: 3678: 3676: 3675: 3670: 3668: 3667: 3659: 3649: 3647: 3646: 3641: 3639: 3638: 3630: 3620: 3618: 3617: 3612: 3604: 3603: 3597: 3596: 3591: 3586: 3580: 3579: 3571: 3568: 3567: 3551: 3549: 3548: 3543: 3535: 3534: 3528: 3527: 3522: 3517: 3511: 3510: 3502: 3499: 3498: 3482: 3480: 3479: 3474: 3472: 3471: 3465: 3464: 3452: 3451: 3443: 3440: 3439: 3433: 3432: 3427: 3423: 3407: 3406: 3400: 3399: 3387: 3386: 3378: 3375: 3374: 3368: 3367: 3362: 3357: 3347: 3345: 3344: 3339: 3337: 3336: 3320: 3318: 3317: 3312: 3310: 3309: 3301: 3291: 3289: 3288: 3283: 3281: 3280: 3274: 3273: 3261: 3260: 3252: 3249: 3248: 3228: 3226: 3225: 3220: 3218: 3217: 3209: 3199: 3197: 3196: 3191: 3177: 3172: 3171: 3163: 3160: 3142: 3140: 3139: 3134: 3126: 3114: 3112: 3111: 3106: 3098: 3082: 3080: 3079: 3074: 3072: 3071: 3040: 3038: 3037: 3032: 3030: 3029: 3024: 3019: 2998: 2996: 2995: 2990: 2988: 2987: 2982: 2957:angular momentum 2932: 2930: 2929: 2924: 2922: 2921: 2902: 2900: 2899: 2894: 2892: 2891: 2857: 2855: 2854: 2849: 2834: 2832: 2831: 2826: 2807: 2805: 2804: 2799: 2784: 2782: 2781: 2776: 2762:has eigenvalues 2761: 2759: 2758: 2753: 2751: 2747: 2746: 2741: 2736: 2725: 2723: 2722: 2717: 2709: 2708: 2703: 2702: 2698: 2697: 2692: 2687: 2674: 2672: 2671: 2666: 2664: 2663: 2658: 2653: 2643: 2641: 2640: 2635: 2633: 2629: 2628: 2623: 2618: 2607: 2605: 2604: 2599: 2597: 2596: 2595: 2590: 2585: 2568: 2567: 2562: 2557: 2551: 2547: 2546: 2541: 2536: 2525: 2523: 2522: 2517: 2515: 2514: 2492: 2490: 2489: 2484: 2482: 2481: 2462: 2460: 2459: 2454: 2452: 2451: 2446: 2445: 2440: 2435: 2424: 2422: 2421: 2416: 2414: 2413: 2394: 2392: 2391: 2386: 2384: 2383: 2378: 2377: 2372: 2367: 2356: 2354: 2353: 2348: 2346: 2345: 2330: 2329: 2314: 2313: 2297: 2296: 2291: 2290: 2285: 2280: 2266: 2264: 2263: 2258: 2256: 2255: 2251: 2235: 2234: 2233: 2228: 2223: 2207: 2206: 2190: 2189: 2184: 2179: 2169: 2167: 2166: 2161: 2148:unitary operator 2145: 2143: 2142: 2137: 2135: 2134: 2129: 2124: 2067: 2065: 2064: 2059: 2057: 2056: 2032: 2030: 2029: 2024: 2022: 2005: 2003: 2002: 1997: 1995: 1977: 1975: 1974: 1969: 1967: 1954:) (axial vector) 1944:angular momentum 1941: 1939: 1938: 1933: 1931: 1910: 1908: 1907: 1902: 1877: 1875: 1874: 1869: 1852: 1850: 1849: 1844: 1822: 1820: 1819: 1814: 1796: 1794: 1793: 1788: 1770: 1768: 1767: 1762: 1744: 1742: 1741: 1736: 1706: 1704: 1703: 1698: 1696: 1682:vector potential 1679: 1677: 1676: 1671: 1669: 1652: 1650: 1649: 1644: 1642: 1625: 1623: 1622: 1617: 1615: 1598: 1596: 1595: 1590: 1588: 1571: 1569: 1568: 1563: 1561: 1543: 1541: 1540: 1535: 1533: 1519: 1517: 1516: 1511: 1509: 1487: 1485: 1484: 1479: 1477: 1459: 1457: 1456: 1451: 1449: 1431: 1429: 1428: 1423: 1421: 1403: 1401: 1400: 1395: 1393: 1376: 1374: 1373: 1368: 1351: 1349: 1348: 1343: 1283: 1281: 1280: 1275: 1273: 1261: 1259: 1258: 1253: 1251: 1239: 1237: 1236: 1231: 1229: 1217: 1215: 1214: 1209: 1191: 1189: 1188: 1183: 1181: 1174: 1163: 1146: 1128: 1124: 1115: 1114: 1106: 1099: 1091: 1079: 1059: 1057: 1056: 1051: 1049: 1034: 1032: 1031: 1026: 1024: 1013: 993: 991: 990: 985: 974: 971: 959: 957: 956: 951: 906: 904: 903: 898: 869: 867: 866: 861: 822: 820: 819: 814: 784: 782: 781: 776: 762: 759: 744: 742: 741: 736: 708: 706: 705: 700: 686: 685: 680: 675: 665: 663: 662: 657: 643: 642: 637: 632: 622: 620: 619: 614: 612: 611: 606: 589: 587: 586: 581: 579: 578: 570: 564: 563: 558: 557: 552: 547: 536: 534: 533: 528: 526: 525: 520: 487: 485: 484: 479: 474: 473: 435: 434: 399: 398: 372: 355: 342: 329: 181:weak interaction 165: 163: 162: 157: 152: 151: 107: 106: 71: 56:point reflection 42:parity inversion 21: 6806: 6805: 6801: 6800: 6799: 6797: 6796: 6795: 6786:Quantum numbers 6776:Nuclear physics 6751: 6750: 6749: 6744: 6721: 6698: 6675: 6672: 6637: 6620: 6614: 6597: 6591: 6574: 6568: 6555: 6552: 6547: 6546: 6498: 6497: 6493: 6447: 6446: 6442: 6412:Physical Review 6397: 6396: 6392: 6368: 6364: 6363:978-957132110-3 6351: 6344: 6343: 6339: 6309:Physical Review 6294: 6293: 6289: 6259:Physical Review 6244: 6243: 6239: 6230: 6228: 6226: 6201: 6200: 6196: 6175:(12): 164–175. 6164: 6163: 6159: 6149: 6147: 6136: 6135: 6128: 6111:Gardner, Martin 6109: 6108: 6104: 6076:Physical Review 6072: 6071: 6067: 6022: 6021: 6017: 6010: 5994: 5993: 5989: 5982: 5963: 5962: 5958: 5923:Phys. Rev. Lett 5892: 5891: 5889: 5888: 5884: 5857:Phys. Rev. Lett 5827: 5818: 5813: 5812: 5783: 5774: 5769: 5768: 5748: 5743: 5742: 5722: 5717: 5716: 5714: 5713: 5709: 5673: 5672: 5668: 5660: 5656: 5649: 5641:. p. 204. 5632: 5631: 5627: 5611: 5610: 5606: 5599: 5582: 5581: 5574: 5567: 5554: 5553: 5549: 5542: 5529: 5528: 5524: 5514: 5513: 5503:linear momentum 5500: 5496: 5486: 5449: 5429: 5395: 5358:Chien-Shiung Wu 5290: 5289: 5288: 5287: 5286: 5279: 5270: 5269: 5268: 5265: 5254: 5248: 5200: 5193: 5182: 5163: 5156: 5155: 5127: 5126: 5090: 5086: 5085: 5077: 5076: 5042: 5041: 5011: 5010: 4971: 4970: 4961: 4959: 4958: 4957: 4953: 4951: 4950: 4949: 4948: 4947: 4941: 4939: 4938: 4937: 4933: 4930: 4929: 4928: 4926: 4907: 4895: 4889: 4888: 4884: 4873: 4866: 4853: 4852: 4846: 4845: 4839: 4825: 4822:number operator 4812: 4808: 4796: 4795: 4791: 4786: 4783: 4779: 4778: 4774: 4769: 4765: 4764: 4758: 4757: 4748: 4740: 4736: 4735: 4731: 4727: 4723: 4719: 4708: 4707: 4701: 4699:electric charge 4692: 4683: 4665: 4664: 4661: 4655: 4650: 4577: 4553: 4552: 4501: 4466: 4465: 4431: 4430: 4409: 4408: 4357: 4327: 4326: 4264: 4260: 4255: 4254: 4232: 4218: 4199: 4198: 4191: 4184: 4170: 4128:and are called 4116:and are called 4042:Longuet-Higgins 4037: 4025:Atomic orbitals 4022: 4013: 3984: 3952: 3931: 3926: 3925: 3895: 3894: 3871: 3870: 3843: 3807: 3806: 3776: 3775: 3747: 3746: 3712: 3711: 3681: 3680: 3652: 3651: 3623: 3622: 3557: 3556: 3488: 3487: 3456: 3416: 3412: 3411: 3391: 3350: 3349: 3328: 3323: 3322: 3294: 3293: 3265: 3238: 3237: 3202: 3201: 3145: 3144: 3117: 3116: 3089: 3088: 3061: 3046: 3045: 3012: 3011: 2977: 2972: 2971: 2965: 2938:centrosymmetric 2913: 2905: 2904: 2883: 2875: 2874: 2872: 2837: 2836: 2814: 2813: 2787: 2786: 2764: 2763: 2733: 2728: 2727: 2684: 2682: 2677: 2676: 2646: 2645: 2615: 2610: 2609: 2570: 2533: 2528: 2527: 2500: 2495: 2494: 2470: 2465: 2464: 2432: 2427: 2426: 2402: 2397: 2396: 2364: 2359: 2358: 2335: 2318: 2303: 2277: 2272: 2271: 2244: 2240: 2211: 2196: 2172: 2171: 2152: 2151: 2117: 2116: 2096: 2091: 2086: 2045: 2040: 2039: 2013: 2012: 1986: 1985: 1958: 1957: 1922: 1921: 1893: 1892: 1860: 1859: 1835: 1834: 1805: 1804: 1779: 1778: 1753: 1752: 1727: 1726: 1719: 1714: 1709:Poynting vector 1687: 1686: 1660: 1659: 1633: 1632: 1606: 1605: 1579: 1578: 1574:current density 1552: 1551: 1524: 1523: 1496: 1495: 1490:linear momentum 1468: 1467: 1464:of the particle 1440: 1439: 1412: 1411: 1384: 1383: 1359: 1358: 1334: 1333: 1326: 1298: 1264: 1263: 1242: 1241: 1220: 1219: 1200: 1199: 1196:electrodynamics 1179: 1178: 1129: 1116: 1101: 1100: 1080: 1066: 1065: 1040: 1039: 1004: 1003: 1000: 965: 964: 912: 911: 910:pseudovectors: 874: 873: 828: 827: 826:pseudoscalars: 790: 789: 747: 746: 727: 726: 719: 668: 667: 625: 624: 601: 596: 595: 544: 539: 538: 515: 510: 509: 468: 467: 461: 460: 454: 453: 440: 429: 428: 422: 421: 415: 414: 404: 390: 385: 384: 377:One can define 367: 350: 337: 324: 269:representations 245: 239: 193:Chien-Shiung Wu 146: 145: 136: 135: 126: 125: 112: 101: 100: 94: 93: 87: 86: 76: 62: 61: 28: 23: 22: 15: 12: 11: 5: 6804: 6802: 6794: 6793: 6788: 6783: 6778: 6773: 6768: 6763: 6753: 6752: 6746: 6745: 6743: 6742: 6737: 6732: 6726: 6723: 6722: 6720: 6719: 6714: 6709: 6703: 6700: 6699: 6697: 6696: 6691: 6686: 6680: 6677: 6676: 6673: 6671: 6670: 6663: 6656: 6648: 6642: 6641: 6635: 6618: 6612: 6595: 6589: 6572: 6566: 6551: 6548: 6545: 6544: 6491: 6440: 6403:Lederman, L.M. 6390: 6362: 6350:吳健雄: 物理科學的第一夫人 6337: 6287: 6266:(1): 254–258. 6237: 6224: 6194: 6157: 6126: 6123:. p. 213. 6102: 6065: 6038:(3): 571–592. 6015: 6008: 5998:(1995). "16". 5987: 5980: 5956: 5908: 5903: 5899: 5882: 5863:(4): 267–269. 5842: 5838: 5834: 5830: 5824: 5820: 5798: 5794: 5790: 5786: 5780: 5776: 5754: 5750: 5728: 5724: 5707: 5686:(5): 445–460. 5666: 5654: 5647: 5625: 5604: 5597: 5572: 5565: 5547: 5540: 5521: 5520: 5512: 5511: 5493: 5492: 5485: 5482: 5481: 5480: 5475: 5470: 5465: 5460: 5455: 5448: 5445: 5428: 5425: 5388:L. M. Lederman 5346:Chen-Ning Yang 5280: 5273: 5272: 5271: 5266: 5259: 5258: 5257: 5256: 5255: 5247: 5244: 5227: 5221: 5218: 5215: 5207: 5203: 5199: 5196: 5189: 5185: 5181: 5178: 5175: 5172: 5169: 5166: 5140: 5137: 5113: 5105: 5100: 5096: 5093: 5089: 5064: 5058: 5055: 5052: 5018: 4990: 4986: 4982: 4960: 4952: 4940: 4931: 4906: 4903: 4673:Standard Model 4654: 4651: 4649: 4646: 4627:Dirac equation 4610: 4606: 4602: 4599: 4595: 4591: 4586: 4581: 4576: 4572: 4568: 4564: 4561: 4540: 4537: 4534: 4530: 4526: 4523: 4520: 4515: 4512: 4506: 4500: 4497: 4494: 4490: 4486: 4483: 4480: 4475: 4438: 4417: 4396: 4393: 4390: 4386: 4382: 4379: 4375: 4371: 4366: 4361: 4356: 4353: 4350: 4346: 4342: 4338: 4335: 4297: 4290: 4286: 4279: 4273: 4270: 4263: 4241: 4238: 4235: 4231: 4227: 4224: 4221: 4214: 4210: 4190: 4187: 4182: 4169: 4166: 4036: 4033: 4021: 4018: 4012: 4009: 3997: 3993: 3990: 3987: 3980: 3976: 3968: 3965: 3961: 3958: 3955: 3949: 3942: 3938: 3910: 3906: 3878: 3856: 3852: 3849: 3846: 3842: 3839: 3836: 3833: 3829: 3822: 3818: 3791: 3787: 3760: 3757: 3743: 3742: 3727: 3723: 3696: 3692: 3665: 3662: 3636: 3633: 3610: 3607: 3602: 3594: 3590: 3583: 3577: 3574: 3566: 3553: 3541: 3538: 3533: 3525: 3521: 3514: 3508: 3505: 3497: 3484: 3470: 3463: 3459: 3455: 3449: 3446: 3438: 3431: 3426: 3422: 3419: 3415: 3410: 3405: 3398: 3394: 3390: 3384: 3381: 3373: 3365: 3361: 3335: 3331: 3307: 3304: 3279: 3272: 3268: 3264: 3258: 3255: 3247: 3234: 3215: 3212: 3189: 3186: 3183: 3180: 3176: 3169: 3166: 3159: 3155: 3152: 3132: 3129: 3125: 3104: 3101: 3097: 3070: 3067: 3064: 3059: 3056: 3053: 3027: 3023: 2986: 2981: 2964: 2961: 2920: 2916: 2912: 2890: 2886: 2882: 2873:) is labelled 2870: 2847: 2844: 2824: 2821: 2810:even functions 2797: 2794: 2774: 2771: 2750: 2744: 2740: 2715: 2712: 2707: 2701: 2695: 2691: 2661: 2657: 2632: 2626: 2622: 2594: 2589: 2584: 2581: 2577: 2573: 2565: 2561: 2554: 2550: 2544: 2540: 2513: 2510: 2507: 2503: 2480: 2477: 2473: 2463:is an element 2450: 2443: 2439: 2412: 2409: 2405: 2382: 2375: 2371: 2344: 2341: 2338: 2333: 2328: 2325: 2321: 2317: 2312: 2309: 2306: 2301: 2295: 2288: 2284: 2254: 2250: 2247: 2243: 2238: 2232: 2227: 2222: 2219: 2214: 2210: 2205: 2202: 2199: 2194: 2187: 2183: 2159: 2132: 2128: 2113:quantum states 2095: 2092: 2090: 2087: 2085: 2084: 2073: 2055: 2052: 2048: 2037: 2021: 2010: 1994: 1983: 1982:(axial vector) 1980:magnetic field 1966: 1955: 1930: 1919: 1913:energy density 1900: 1890: 1867: 1857: 1855:charge density 1842: 1832: 1812: 1802: 1786: 1776: 1760: 1750: 1734: 1723: 1718: 1715: 1713: 1712: 1695: 1684: 1668: 1657: 1641: 1630: 1614: 1603: 1601:electric field 1587: 1576: 1560: 1549: 1532: 1521: 1508: 1503: 1493: 1476: 1465: 1448: 1437: 1420: 1409: 1392: 1381: 1366: 1356: 1341: 1330: 1325: 1322: 1297: 1294: 1272: 1250: 1240:, and current 1228: 1207: 1177: 1173: 1169: 1166: 1162: 1158: 1155: 1152: 1149: 1145: 1141: 1138: 1135: 1132: 1130: 1127: 1123: 1119: 1112: 1109: 1103: 1102: 1098: 1094: 1090: 1086: 1083: 1081: 1078: 1074: 1073: 1048: 1023: 1019: 1016: 1012: 999: 996: 983: 980: 977: 961: 960: 949: 946: 943: 940: 937: 934: 931: 928: 925: 922: 919: 908: 896: 893: 890: 887: 884: 881: 870: 859: 856: 853: 850: 847: 844: 841: 838: 835: 824: 812: 809: 806: 803: 800: 797: 774: 771: 768: 765: 757: 754: 734: 718: 715: 698: 695: 692: 689: 683: 679: 655: 652: 649: 646: 640: 636: 610: 605: 576: 573: 567: 562: 555: 551: 524: 519: 477: 472: 466: 463: 462: 459: 456: 455: 452: 449: 446: 445: 443: 438: 433: 427: 424: 423: 420: 417: 416: 413: 410: 409: 407: 402: 397: 393: 375: 374: 344: 275:Quantum theory 238: 235: 155: 150: 144: 141: 138: 137: 134: 131: 128: 127: 124: 121: 118: 117: 115: 110: 105: 99: 96: 95: 92: 89: 88: 85: 82: 81: 79: 74: 70: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 6803: 6792: 6789: 6787: 6784: 6782: 6779: 6777: 6774: 6772: 6769: 6767: 6764: 6762: 6759: 6758: 6756: 6741: 6738: 6736: 6733: 6731: 6728: 6727: 6724: 6718: 6715: 6713: 6710: 6708: 6705: 6704: 6701: 6695: 6692: 6690: 6687: 6685: 6682: 6681: 6678: 6669: 6664: 6662: 6657: 6655: 6650: 6649: 6646: 6638: 6636:0-521-67053-5 6632: 6628: 6624: 6619: 6615: 6613:0-521-44349-0 6609: 6605: 6601: 6596: 6592: 6586: 6582: 6578: 6573: 6569: 6567:9780521621960 6563: 6559: 6554: 6553: 6549: 6540: 6536: 6532: 6528: 6524: 6520: 6515: 6510: 6506: 6502: 6495: 6492: 6487: 6483: 6479: 6475: 6471: 6467: 6463: 6459: 6455: 6451: 6444: 6441: 6435: 6430: 6426: 6422: 6418: 6414: 6413: 6408: 6404: 6400: 6394: 6391: 6388: 6387:957-13-2110-9 6384: 6379: 6373: 6365: 6359: 6355: 6348: 6341: 6338: 6332: 6327: 6323: 6319: 6315: 6311: 6310: 6305: 6301: 6297: 6291: 6288: 6282: 6277: 6273: 6269: 6265: 6261: 6260: 6255: 6251: 6247: 6241: 6238: 6227: 6221: 6217: 6213: 6209: 6205: 6198: 6195: 6190: 6186: 6182: 6178: 6174: 6170: 6169: 6161: 6158: 6146: 6145: 6140: 6133: 6131: 6127: 6122: 6118: 6117: 6112: 6106: 6103: 6098: 6094: 6090: 6086: 6082: 6078: 6077: 6069: 6066: 6061: 6057: 6053: 6049: 6045: 6041: 6037: 6033: 6029: 6025: 6019: 6016: 6011: 6009:9780521670531 6005: 6001: 5997: 5991: 5988: 5983: 5981:0-521-31960-9 5977: 5973: 5969: 5968: 5960: 5957: 5952: 5948: 5944: 5940: 5936: 5932: 5928: 5924: 5906: 5901: 5898: 5886: 5883: 5878: 5874: 5870: 5866: 5862: 5858: 5840: 5836: 5832: 5828: 5822: 5819: 5796: 5792: 5788: 5784: 5778: 5775: 5752: 5749: 5726: 5723: 5711: 5708: 5702: 5697: 5693: 5689: 5685: 5681: 5677: 5670: 5667: 5663: 5658: 5655: 5650: 5644: 5640: 5639:Prentice Hall 5636: 5629: 5626: 5620: 5615: 5608: 5605: 5600: 5594: 5590: 5586: 5579: 5577: 5573: 5568: 5566:0-205-12770-3 5562: 5558: 5551: 5548: 5543: 5541:0-205-12770-3 5537: 5533: 5526: 5523: 5519: 5518: 5508: 5504: 5498: 5495: 5491: 5490: 5483: 5479: 5476: 5474: 5471: 5469: 5468:Mirror matter 5466: 5464: 5461: 5459: 5456: 5454: 5451: 5450: 5446: 5444: 5442: 5438: 5434: 5426: 5424: 5422: 5418: 5414: 5410: 5405: 5403: 5399: 5391: 5389: 5385: 5381: 5377: 5373: 5369: 5367: 5363: 5359: 5355: 5351: 5347: 5343: 5342:Tsung-Dao Lee 5337: 5335: 5331: 5327: 5323: 5318: 5316: 5311: 5307: 5303: 5299: 5295: 5284: 5277: 5263: 5253: 5252:Wu experiment 5245: 5243: 5241: 5225: 5219: 5216: 5213: 5205: 5197: 5187: 5179: 5170: 5167: 5138: 5135: 5111: 5103: 5098: 5094: 5091: 5087: 5062: 5056: 5053: 5050: 5039: 5035: 5032:Neutrons are 5030: 5016: 5008: 4984: 4969: 4944: 4924: 4920: 4916: 4912: 4904: 4902: 4899: 4880: 4876: 4869: 4865:, which have 4864: 4861: 4842: 4836: 4832: 4828: 4823: 4820: 4815: 4805: 4803: 4754: 4751: 4745: 4716: 4711: 4704: 4700: 4695: 4691: 4690:lepton number 4686: 4682: 4681:baryon number 4678: 4674: 4668: 4660: 4652: 4647: 4645: 4643: 4639: 4634: 4632: 4628: 4624: 4600: 4589: 4584: 4535: 4532: 4521: 4518: 4513: 4510: 4495: 4492: 4484: 4478: 4462: 4460: 4459:axial-vectors 4456: 4455:vector bosons 4452: 4436: 4391: 4388: 4380: 4369: 4364: 4351: 4348: 4323: 4319: 4316:To show that 4314: 4312: 4295: 4277: 4268: 4261: 4239: 4236: 4233: 4229: 4225: 4222: 4219: 4196: 4188: 4186: 4179: 4175: 4167: 4165: 4163: 4159: 4155: 4151: 4150: 4145: 4144: 4139: 4138: 4133: 4132: 4127: 4126: 4121: 4120: 4115: 4114: 4109: 4108: 4103: 4102: 4096: 4095: 4090: 4089: 4084: 4083: 4078: 4074: 4070: 4066: 4062: 4057: 4055: 4054: 4049: 4048: 4043: 4034: 4032: 4030: 4026: 4019: 4017: 4010: 4008: 3995: 3991: 3988: 3985: 3966: 3963: 3959: 3956: 3953: 3947: 3892: 3876: 3867: 3854: 3850: 3847: 3844: 3840: 3837: 3831: 3755: 3660: 3631: 3608: 3605: 3581: 3572: 3554: 3539: 3536: 3512: 3503: 3485: 3461: 3457: 3453: 3444: 3429: 3424: 3420: 3417: 3413: 3408: 3396: 3392: 3388: 3379: 3333: 3329: 3302: 3270: 3266: 3262: 3253: 3235: 3232: 3210: 3187: 3184: 3178: 3164: 3153: 3127: 3099: 3086: 3085: 3084: 3068: 3065: 3062: 3057: 3054: 3051: 3043: 3009: 3005: 3000: 2984: 2970: 2969:Abelian group 2962: 2960: 2958: 2953: 2951: 2947: 2941: 2939: 2934: 2918: 2914: 2910: 2888: 2884: 2880: 2868: 2864: 2859: 2845: 2842: 2822: 2819: 2811: 2795: 2792: 2772: 2769: 2748: 2713: 2710: 2705: 2699: 2675:. Note that 2630: 2592: 2587: 2582: 2579: 2575: 2571: 2552: 2548: 2511: 2508: 2505: 2501: 2478: 2475: 2471: 2448: 2410: 2407: 2403: 2380: 2342: 2339: 2336: 2331: 2326: 2323: 2319: 2315: 2310: 2307: 2304: 2299: 2293: 2268: 2252: 2248: 2245: 2241: 2236: 2230: 2225: 2220: 2217: 2212: 2208: 2203: 2200: 2197: 2192: 2157: 2149: 2114: 2106: 2100: 2093: 2088: 2082: 2078: 2074: 2071: 2053: 2050: 2046: 2038: 2036: 2035:magnetization 2011: 2009: 1984: 1981: 1956: 1953: 1949: 1945: 1920: 1918: 1914: 1898: 1891: 1888: 1884: 1881: 1865: 1858: 1856: 1840: 1833: 1830: 1826: 1810: 1803: 1801:of a particle 1800: 1784: 1777: 1775:of a particle 1774: 1758: 1751: 1748: 1732: 1725: 1724: 1722: 1716: 1710: 1685: 1683: 1658: 1656: 1631: 1629: 1604: 1602: 1577: 1575: 1550: 1547: 1522: 1501: 1494: 1492:of a particle 1491: 1466: 1463: 1438: 1436:of a particle 1435: 1410: 1407: 1382: 1380: 1379:magnetic flux 1357: 1355: 1339: 1332: 1331: 1329: 1323: 1321: 1317: 1315: 1311: 1307: 1303: 1295: 1293: 1291: 1287: 1205: 1197: 1194:In classical 1192: 1175: 1167: 1156: 1150: 1139: 1133: 1131: 1125: 1117: 1107: 1092: 1084: 1082: 1063: 1036: 1017: 1014: 997: 995: 978: 947: 944: 938: 929: 923: 917: 909: 894: 891: 885: 879: 871: 854: 845: 839: 833: 825: 810: 807: 801: 795: 787: 786: 785: 772: 766: 755: 752: 732: 725: 716: 714: 712: 696: 693: 690: 687: 653: 650: 647: 644: 608: 593: 571: 565: 560: 522: 508: 507:abelian group 503: 501: 497: 493: 488: 475: 470: 464: 457: 450: 447: 441: 431: 425: 418: 411: 405: 400: 395: 391: 382: 380: 370: 365: 364: 363:pseudovectors 360:(also called 359: 358:axial vectors 353: 348: 345: 340: 335: 334: 333:pseudoscalars 327: 322: 319: 318: 317: 314: 312: 308: 304: 300: 295: 292: 288: 284: 280: 279:Hilbert space 276: 272: 270: 266: 262: 258: 254: 250: 244: 236: 234: 232: 227: 225: 224:180° rotation 221: 217: 213: 209: 204: 200: 198: 194: 190: 186: 185:Wu experiment 182: 178: 173: 171: 166: 153: 148: 142: 139: 132: 129: 122: 119: 113: 103: 97: 90: 83: 77: 72: 59: 57: 53: 50: 47: 43: 40:(also called 39: 35: 30: 19: 6717:CPT symmetry 6688: 6622: 6600:CP Violation 6599: 6576: 6557: 6504: 6500: 6494: 6456:(1): 26–31. 6453: 6449: 6443: 6416: 6410: 6399:Garwin, R.L. 6393: 6353: 6346: 6340: 6313: 6307: 6290: 6263: 6257: 6240: 6229:, retrieved 6207: 6197: 6172: 6166: 6160: 6148:. Retrieved 6142: 6115: 6105: 6080: 6074: 6068: 6035: 6031: 6028:Weinberg, S. 6024:Feinberg, G. 6018: 5999: 5990: 5966: 5959: 5926: 5922: 5885: 5860: 5856: 5710: 5683: 5679: 5669: 5657: 5634: 5628: 5607: 5588: 5556: 5550: 5531: 5525: 5516: 5515: 5497: 5488: 5487: 5458:CP violation 5430: 5406: 5392: 5384:R. L. Garwin 5370: 5338: 5330:Hermann Weyl 5319: 5305: 5291: 5282: 5036:and so obey 5031: 4908: 4897: 4878: 4874: 4867: 4840: 4834: 4830: 4826: 4813: 4806: 4755: 4749: 4743: 4714: 4709: 4702: 4693: 4684: 4666: 4662: 4635: 4463: 4315: 4195:vacuum state 4192: 4171: 4164:transitions 4161: 4157: 4153: 4148: 4147: 4142: 4141: 4136: 4135: 4130: 4129: 4124: 4123: 4118: 4117: 4112: 4111: 4106: 4105: 4100: 4099: 4093: 4092: 4087: 4086: 4081: 4080: 4058: 4052: 4051: 4046: 4045: 4038: 4023: 4014: 3868: 3744: 3236:For a state 3004:Hamiltonians 3001: 2966: 2954: 2942: 2935: 2866: 2862: 2860: 2269: 2170:as follows: 2110: 2076: 1720: 1462:acceleration 1327: 1318: 1313: 1309: 1305: 1301: 1299: 1193: 1062:axial vector 1037: 1001: 962: 720: 504: 499: 495: 491: 489: 383: 378: 376: 368: 361: 357: 351: 346: 338: 331: 325: 320: 315: 296: 290: 289:. The word 273: 246: 228: 219: 207: 205: 201: 174: 167: 60: 45: 41: 37: 31: 29: 6712:CP symmetry 6507:: 200–236. 5326:weak decays 1853:, electric 1572:, electric 1520:, mass flow 379:reflections 212:determinant 6755:Categories 6694:T-symmetry 6689:P-symmetry 6684:C-symmetry 6514:1906.11413 6250:Yang, C.N. 5484:References 5478:T-symmetry 5453:C-symmetry 5250:See also: 4697:, and the 4657:See also: 4642:spin group 4154:ortho-para 3891:eigenvalue 2946:beta decay 2081:weak force 291:projective 241:See also: 52:coordinate 6791:Asymmetry 6735:Pin group 6730:Chirality 6539:181517015 6486:133308325 6478:1061-9127 6372:cite book 6300:Ambler, E 6246:Lee, T.D. 6231:29 August 6189:124880732 6168:Resonance 6113:(1969) . 6060:120498009 5619:0811.3403 5517:Citations 5489:Footnotes 5439:decay to 5437:rho meson 5380:cobalt-60 5362:cryogenic 5322:R. T. Cox 5217:− 5168:− 5092:− 5005:into two 4863:neutrinos 4747:for some 4601:− 4522:ϕ 4511:− 4485:− 4479:ϕ 4437:± 4392:± 4381:− 4352:± 4289:^ 4272:^ 4213:^ 4131:ungerade. 4035:Molecules 3989:ψ 3979:^ 3957:ψ 3941:^ 3909:^ 3848:ψ 3835:⟩ 3832:ψ 3821:^ 3790:^ 3759:^ 3726:^ 3695:^ 3664:^ 3635:^ 3593:^ 3576:^ 3524:^ 3507:^ 3448:→ 3418:− 3383:→ 3364:^ 3306:→ 3257:→ 3214:^ 3182:⟩ 3179:ψ 3168:^ 3154:φ 3151:⟨ 3131:⟩ 3128:ψ 3103:⟩ 3100:φ 3026:^ 3008:invariant 2915:σ 2885:σ 2843:± 2820:− 2770:± 2743:^ 2694:^ 2660:^ 2625:^ 2576:− 2564:^ 2553:≡ 2543:^ 2506:− 2442:^ 2411:ϕ 2374:^ 2332:ψ 2327:ϕ 2300:ψ 2287:^ 2246:− 2237:ψ 2221:ϕ 2193:ψ 2186:^ 2158:ψ 2131:^ 1899:ρ 1841:ρ 1827:(rate of 1502:ρ 1365:Φ 1206:ρ 1157:− 1151:× 1140:− 1111:^ 1093:× 918:ρ 880:ρ 872:vectors: 834:ρ 796:ρ 788:scalars: 756:∈ 733:ρ 697:ϕ 694:− 688:ϕ 682:^ 654:ϕ 645:ϕ 639:^ 575:^ 554:^ 448:− 437:↦ 249:rotations 170:chirality 140:− 130:− 120:− 109:↦ 6296:Wu, C.S. 6252:(1956). 6150:5 August 5951:11290233 5855:Limit". 5447:See also 5034:fermions 5007:neutrons 4923:deuteron 4860:Majorana 4638:fermions 4631:fermions 4551:, since 4240:⟩ 4226:⟩ 4119:gerade, 4065:ethylene 3992:⟩ 3960:⟩ 3851:⟩ 3469:⟩ 3404:⟩ 3278:⟩ 3042:commutes 2867:ungerade 2749:′ 2700:′ 2631:′ 2549:′ 1434:velocity 1406:position 1354:helicity 381:such as 216:rotation 6550:Sources 6519:Bibcode 6458:Bibcode 6421:Bibcode 6318:Bibcode 6268:Bibcode 6144:PhysOrg 6085:Bibcode 6040:Bibcode 5931:Bibcode 5865:Bibcode 5767:at the 5688:Bibcode 5298:gravity 4819:fermion 4817:is the 4623:spinors 4069:benzene 3348:, then 3229:is the 2726:and so 2146:, is a 1948:orbital 1915:of the 1887:voltage 498:-, and 347:vectors 321:scalars 311:spinors 261:tensors 257:vectors 253:scalars 49:spatial 34:physics 6633:  6610:  6587:  6564:  6537:  6484:  6476:  6385:  6360:  6222:  6187:  6058:  6006:  5978:  5949:  5645:  5595:  5563:  5538:  5433:hadron 5398:puzzle 5376:Ambler 5310:chiral 5223:  5142:  5133:  5109:  5083:  5060:  5048:  4993:  4977:  4956:π 4896:± 4849:= (−1) 4750:α 4728:γ 4726:, and 4724:β 4720:α 4688:, the 4407:where 4168:Nuclei 3869:where 3200:where 2863:gerade 2425:. If 2077:except 2068:, the 2006:, the 1978:, the 1942:, the 1880:scalar 1799:energy 1797:, the 1771:, the 1745:, the 1707:, the 1626:, the 1599:, the 1544:, the 1488:, the 1460:, the 1432:, the 1404:, the 1060:is an 594:. For 356:) and 330:) and 259:, and 247:Under 6535:S2CID 6509:arXiv 6482:S2CID 6352:[ 6185:S2CID 6056:S2CID 5614:arXiv 5507:sound 5441:pions 5402:kaons 5334:Pauli 4790:. If 4636:With 4158:ortho 4020:Atoms 1831:done) 1825:power 1546:force 711:phase 283:group 6631:ISBN 6608:ISBN 6585:ISBN 6562:ISBN 6474:ISSN 6383:ISBN 6378:link 6358:ISBN 6233:2021 6220:ISBN 6152:2011 6004:ISBN 5976:ISBN 5947:PMID 5643:ISBN 5593:ISBN 5561:ISBN 5536:ISBN 5344:and 5296:and 4919:pion 4913:and 4885:(−1) 4872:and 4809:(−1) 4677:U(1) 4659:(−1) 4311:good 4162:para 4146:and 4075:and 3115:and 3006:are 1952:spin 1950:and 1829:work 1773:mass 1747:time 1717:Even 1310:even 1290:curl 371:= +1 354:= −1 341:= −1 328:= +1 231:even 36:, a 6527:doi 6505:107 6466:doi 6429:doi 6417:105 6326:doi 6314:105 6276:doi 6264:104 6212:doi 6177:doi 6093:doi 6048:doi 5939:doi 5921:". 5873:doi 5727:127 5696:doi 5587:". 5396:τ–θ 5283:not 5029:). 4892:= 1 4881:= 0 4870:= 1 4856:= 1 4761:= 1 4183:5/2 4067:, 4050:or 3893:of 3555:If 3486:If 3087:If 1324:Odd 1308:or 1306:odd 933:det 849:det 494:-, 366:) ( 220:not 58:): 46:one 32:In 6757:: 6707:CP 6629:. 6625:. 6606:. 6583:. 6579:. 6533:. 6525:. 6517:. 6503:. 6480:. 6472:. 6464:. 6454:29 6452:. 6427:. 6415:. 6409:. 6401:; 6374:}} 6370:{{ 6324:. 6312:. 6306:. 6298:; 6274:. 6262:. 6256:. 6248:; 6218:, 6206:, 6183:. 6173:10 6171:. 6141:. 6129:^ 6091:. 6081:95 6079:. 6054:. 6046:. 6036:14 6034:. 6026:; 5974:. 5972:57 5945:. 5937:. 5927:86 5925:. 5871:. 5861:52 5859:. 5811:− 5694:. 5682:. 5678:. 5575:^ 5443:. 5423:. 5404:. 5386:, 5374:, 5372:Wu 5368:. 5242:. 4901:. 4877:+ 4833:+ 4829:= 4782:= 4780:P' 4768:= 4753:. 4739:= 4737:P' 4732:P' 4722:, 4713:= 4644:. 4181:1d 4071:, 3924:, 2933:. 2858:. 2267:. 2033:, 1911:, 1878:, 1823:, 1653:, 1377:, 1352:, 1064:, 972:SO 713:. 255:, 226:. 6667:e 6660:t 6653:v 6639:. 6616:. 6593:. 6570:. 6541:. 6529:: 6521:: 6511:: 6488:. 6468:: 6460:: 6437:. 6431:: 6423:: 6380:) 6366:. 6334:. 6328:: 6320:: 6284:. 6278:: 6270:: 6214:: 6191:. 6179:: 6154:. 6099:. 6095:: 6087:: 6062:. 6050:: 6042:: 6012:. 5984:. 5953:. 5941:: 5933:: 5907:+ 5902:2 5879:. 5875:: 5867:: 5841:2 5837:/ 5833:1 5829:P 5823:2 5797:2 5793:/ 5789:3 5785:P 5779:2 5753:2 5741:I 5704:. 5698:: 5690:: 5684:6 5651:. 5622:. 5616:: 5601:. 5569:. 5544:. 5226:, 5220:1 5214:= 5206:2 5202:) 5198:1 5195:( 5188:2 5184:) 5180:1 5177:( 5174:) 5171:1 5165:( 5139:1 5136:+ 5112:. 5104:L 5099:) 5095:1 5088:( 5063:. 5057:1 5054:= 5051:L 5017:n 5009:( 4989:0 4985:= 4981:L 4936:H 4932:1 4925:( 4898:i 4890:P 4879:L 4875:B 4868:F 4854:P 4847:P 4841:e 4835:L 4831:B 4827:F 4814:F 4797:Q 4792:Q 4787:Q 4784:P 4775:Q 4770:Q 4766:P 4759:P 4744:e 4741:P 4715:e 4710:P 4703:Q 4694:L 4685:B 4667:P 4609:) 4605:p 4598:( 4594:a 4590:= 4585:+ 4580:P 4575:) 4571:p 4567:( 4563:a 4560:P 4539:) 4536:t 4533:, 4529:x 4525:( 4519:= 4514:1 4505:P 4499:) 4496:t 4493:, 4489:x 4482:( 4474:P 4416:p 4395:) 4389:, 4385:p 4378:( 4374:a 4370:= 4365:+ 4360:P 4355:) 4349:, 4345:p 4341:( 4337:a 4334:P 4296:] 4285:P 4278:, 4269:H 4262:[ 4237:0 4234:| 4230:= 4223:0 4220:| 4209:P 4160:- 4149:u 4143:g 4137:i 4125:u 4113:g 4107:i 4101:i 4094:i 4088:i 4082:i 4053:- 4047:+ 3996:. 3986:| 3975:P 3967:c 3964:= 3954:| 3948:2 3937:P 3905:P 3877:c 3855:, 3845:| 3841:c 3838:= 3828:| 3817:P 3786:P 3756:H 3741:. 3722:P 3691:P 3661:H 3632:H 3609:0 3606:= 3601:] 3589:P 3582:, 3573:H 3565:[ 3540:0 3537:= 3532:] 3520:P 3513:, 3504:H 3496:[ 3483:. 3462:z 3458:L 3454:, 3445:L 3437:| 3430:L 3425:) 3421:1 3414:( 3409:= 3397:z 3393:L 3389:, 3380:L 3372:| 3360:P 3334:z 3330:L 3303:L 3271:z 3267:L 3263:, 3254:L 3246:| 3233:. 3211:X 3188:0 3185:= 3175:| 3165:X 3158:| 3124:| 3096:| 3069:) 3066:r 3063:( 3058:V 3055:= 3052:V 3022:P 2985:2 2980:Z 2919:u 2911:1 2889:g 2881:1 2871:2 2846:1 2823:1 2796:1 2793:+ 2773:1 2739:P 2714:1 2711:= 2706:2 2690:P 2656:P 2621:P 2593:2 2588:/ 2583:Q 2580:i 2572:e 2560:P 2539:P 2512:Q 2509:i 2502:e 2479:Q 2476:i 2472:e 2449:2 2438:P 2408:i 2404:e 2381:2 2370:P 2343:) 2340:r 2337:( 2324:i 2320:e 2316:= 2311:) 2308:r 2305:( 2294:2 2283:P 2253:) 2249:r 2242:( 2231:2 2226:/ 2218:i 2213:e 2209:= 2204:) 2201:r 2198:( 2182:P 2127:P 2083:. 2072:. 2054:j 2051:i 2047:T 2020:M 1993:H 1965:B 1929:L 1889:) 1885:( 1866:V 1811:P 1785:E 1759:m 1733:t 1694:S 1667:A 1640:P 1613:D 1586:E 1559:J 1531:F 1507:v 1475:p 1447:a 1419:v 1391:x 1340:h 1271:B 1249:j 1227:E 1176:. 1172:L 1168:= 1165:) 1161:p 1154:( 1148:) 1144:r 1137:( 1134:= 1126:) 1122:L 1118:( 1108:P 1097:p 1089:r 1085:= 1077:L 1047:L 1022:a 1018:m 1015:= 1011:F 982:) 979:3 976:( 948:. 945:R 942:) 939:R 936:( 930:= 927:) 924:R 921:( 895:R 892:= 889:) 886:R 883:( 858:) 855:R 852:( 846:= 843:) 840:R 837:( 811:1 808:= 805:) 802:R 799:( 773:, 770:) 767:3 764:( 760:O 753:R 691:= 678:P 651:+ 648:= 635:P 609:2 604:Z 572:1 566:= 561:2 550:P 523:2 518:Z 500:z 496:y 492:x 476:, 471:) 465:z 458:y 451:x 442:( 432:) 426:z 419:y 412:x 406:( 401:: 396:x 392:V 369:P 352:P 349:( 339:P 336:( 326:P 323:( 208:P 154:. 149:) 143:z 133:y 123:x 114:( 104:) 98:z 91:y 84:x 78:( 73:: 69:P 20:)

Index

Parity transformation
physics
spatial
coordinate
point reflection
chirality
elementary particles
weak interaction
Wu experiment
National Bureau of Standards
Chien-Shiung Wu
radioactive decay
determinant
rotation
180° rotation
even
Representation theory of SU(2)
rotations
scalars
vectors
tensors
classical physics
representations
Quantum theory
Hilbert space
group
projective representations
central extension
special orthogonal group
special unitary group

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