Initial fields and instabilities in the classical model of relativistic heavy-ion collisions
Journal Article
·
· Physical Review. C, Nuclear Physics
- RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973 (United States)
Color Glass Condensate (CGC) provides a classical description of dense gluon matter at high energies. Using the McLerran-Venugopalan (MV) model we calculate the initial energy density {epsilon}({tau}) in the early stage of the relativistic nucleus-nucleus collision. Our analytical formula reproduces the quantitative results from lattice discretized simulations and leads to an estimate {epsilon}({tau}=0.1 fm)=40{approx}50 GeV{center_dot}fm{sup -3} in the (central) Au-Au collision at BNL Relativistic Heavy Ion Collider. We then formulate instabilities with respect to soft fluctuations that violate boost invariance inherent in hard CGC backgrounds. We find unstable modes arising, which are attributed to ensemble average over the initial CGC fields.
- OSTI ID:
- 21061935
- Journal Information:
- Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 2 Vol. 76; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
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