160:. In these sorts of collisions, the standard outcome is that new particles are created and fly off in different directions. However, the Compact Muon Solenoid (CMS) team at the LHC found that in a sample of 2 million lead-proton collisions, some pairs of particles flew away from each other with their respective directions correlated. This correlation of directions is the anomaly that might be caused by the existence of a color-glass condensate while the particles are colliding.
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is very large. This is because a high-momentum gluon is likely to split into smaller momentum gluons. When the gluon density becomes large enough, gluon-gluon recombination puts a limit on how large the gluon density can be. When gluon recombination balances gluon splitting, the density of gluons
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The color-glass condensate is important because it is proposed as a universal form of matter that describes the properties of all high-energy, strongly interacting particles. It has simple properties that follow from first principles in the theory of strong interactions,
146:. It has the potential to explain many unsolved problems such as how particles are produced in high-energy collisions, and the distribution of matter itself inside of these particles.
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description of the structure of an object cannot depend on a choice of frame. A classical analogy would be if one would provide a
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saturate, producing new and universal properties of hadronic matter. This state of saturated gluon matter is called the
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Gelis, Francois; Iancu, Edmond; Jalilian-Marian, Jamal; Venugopalan, Raju (2010). "The Color Glass
Condensate".
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of the gluons in this wall would then increase greatly. However, this description is incorrect for two reasons:
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480:"Einstein's Theory Predicts a Weird State of Matter. Could It Be Lurking in the World's Largest Atom Smasher?"
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A. Accardi et al., “Electron Ion
Collider: The Next QCD Frontier - Understanding the glue that binds us all,”
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337:(2013). "Observation of long-range near-side angular correlations in proton-lead collisions at the LHC".
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458:"Color-Glass Condensate: New State Of Matter May Have Been Created By Large Hadron Collider"
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variable. The small momenta gluons dominate the description of the collision because their
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Researchers at CERN believe they have created color-glass condensates during collisions of
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property of matter that can only be observed under high-energy conditions such as those at
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of the nucleus. Accordingly, this one would appear compressed along its direction of
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The high density of gluon seen during the collision is often explained by
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Erroneous description in term of hadronic pancakes or gluonic wall
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437:"The Color Glass Condensate and High Energy Scattering in QCD"
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Riordon, James; Schewe, Phil; Stein, Ben (January 14, 2004).
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that have very small momenta, or more precisely a very small
430:"The Color Glass Condensate and Small x Physics: 4 Lectures"
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A correct description of the collision can be given using
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is not observable in collision experiments due to the
444:"Evolution at small x_bj: The Color Glass Condensate"
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and other materials that are disordered and act like
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435:Iancu, Edmond; Venugopalan, Raju (March 24, 2003).
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465:"Lead-proton collisions yield surprising results"
42:. During such collision, one is sensitive to the
180:inside the nucleus would appear to a stationary
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393:Bled Workshops Phys. 16 (2015) 2, 35-46
122:The color-glass condensate describes an
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184:as a "gluonic wall" traveling near the
456:Moskowitz, Clara (November 27, 2012).
442:Weigert, Heribert (January 11, 2005).
419:"Background on color glass condensate"
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95:and gluons carry as a result of the
463:Trafton, Anne (November 27, 2012).
428:McLerran, Larry (April 26, 2001).
309:10.1146/annurev.nucl.010909.083629
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196:Such description depends on the
115:on long time scales. In the CGC
103:" is borrowed from the term for
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369:10.1016/j.physletb.2012.11.025
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968:Macroscopic quantum phenomena
188:. At very high energies, the
978:Order and disorder (physics)
478:Childers, Tim (2019-09-24).
16:Hypothetical phase of matter
405:Rev. Mod. Phys. 21, 392-399
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111:on short time scales but
1003:Thermo-dielectric effect
902:Enthalpy of vaporization
596:Bose–Einstein condensate
451:"Color Glass Condensate"
333:CMS-collaboration siehe
897:Enthalpy of sublimation
200:and therefore violates
1024:Quantum chromodynamics
912:Latent internal energy
662:Color-glass condensate
232:Penrose–Terrell effect
144:quantum chromodynamics
134:as well as the future
86:color-glass condensate
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69:{\displaystyle x_{Bj}}
30:theorized to exist in
20:Color-glass condensate
722:Magnetically ordered
335:Compact Muon Solenoid
176:and as a result, the
136:Electron Ion Collider
132:Large Hadron Collider
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601:Fermionic condensate
460:. HuffingtonPost.com
97:strong nuclear force
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816:Chemical ionization
708:Programmable matter
698:Quantum spin liquid
566:Supercritical fluid
361:2013PhLB..718..795C
301:2010ARNPS..60..463G
963:Leidenfrost effect
892:Enthalpy of fusion
657:Quark–gluon plasma
216:description using
202:Lorentz invariance
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993:Superheated vapor
988:Superconductivity
958:Equation of state
806:Flash evaporation
758:Phase transitions
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636:Photonic molecule
606:Degenerate matter
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247:frame-independent
218:fictitious forces
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998:Superheating
871:Vaporization
866:Triple point
861:Supercooling
826:Lambda point
776:Condensation
693:Time crystal
671:Other states
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611:Quantum Hall
487:. Retrieved
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38:at near the
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907:Latent heat
856:Sublimation
801:Evaporation
736:Ferromagnet
731:Ferrimagnet
713:Dark matter
645:High energy
285:: 463–489.
240:light-front
228:contraction
213:fundamental
207:fundamental
170:contraction
1018:Categories
922:Volatility
885:Quantities
846:Regelation
821:Ionization
796:Deposition
748:Superglass
718:Antimatter
652:QCD matter
631:Supersolid
626:Superfluid
589:Low energy
489:2019-09-24
467:. MITnews.
453:. aip.org.
265:References
34:when they
352:1210.5482
317:118675789
292:1002.0333
124:intrinsic
983:Spinodal
931:Concepts
811:Freezing
253:See also
182:observer
943:Binodal
831:Melting
766:Boiling
683:Crystal
678:Colloid
357:Bibcode
297:Bibcode
190:density
151:protons
113:liquids
81:density
36:collide
571:Plasma
552:Liquid
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259:Glasma
178:gluons
174:motion
130:, the
109:solids
105:silica
93:quarks
44:gluons
28:matter
561:Vapor
547:Solid
540:State
384:2012.
347:arXiv
313:S2CID
287:arXiv
198:frame
153:with
117:phase
101:glass
532:list
204:: a
158:ions
155:lead
128:RHIC
557:Gas
365:doi
343:718
305:doi
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