Abstract
A generic property of a first-order phase transition in equilibrium, and in the limit of large entropy per unit of conserved charge, is the smallness of the isentropic speed of sound in the “mixed phase”. A specific prediction is that this should lead to a non-isotropic momentum distribution of nucleons in the reaction plane (for energies ≈ 40 A GeV in our model calculation). On the other hand, we show that from present effective theories for low-energy QCD one does not expect the thermal transition rate between various states of the effective potential to be much larger than the expansion rate, questioning the applicability of the idealized Maxwell/Gibbs construction. Experimental data could soon provide essential information on the dynamics of the phase transition.
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F.R. Brown, N.H. Christ, Y.F. Deng, M.S. Gao and T.J. Woch, Phys. Rev. Lett. 61 (1988) 2058; M. Oevers, F. Karsch, E. Laermann and P. Schmidt, Nucl. Phys. Proc. Suppl. 63 (1998) 394; ibid. 73 (1999) 465.
I. Mishustin, J. Bondorf and M. Rho, Nucl. Phys. A555 (1993) 215; P. Papazoglou et al., Phys. Rev. C55 (1997) 1499; M.A. Halasz, A.D. Jackson, R.E. Shrock, M.A. Stephanov and J.J. Verbaarschot, Phys. Rev. D58 (1998) 096007; M. Stephanov, K. Rajagopal and E. Shuryak, Phys. Rev. Lett. 81 (1998) 4816.
see, e.g. Proceedings of 14th International Conference on Ultrarelativistic Nucleus-Nucleus Collisions (Quark Matter 99), Torino, Italy, 10–15 May 1999, Nucl. Phys. A661 (1999) 1c and references therein.
O. Scavenius, A. Dumitru, E.S. Fraga, J.T. Lenaghan and A.D. Jackson, hep-ph/0009171.
L.D. Landau and E.M. Lifshitz, Fluid Mechanics, Pergamon, New York, 1959.
B.D. Serot and J.D. Walecka, Adv. Nucl. Phys. 16 (1986) 1; D.H. Rischke, Y. Pürsün and J.A. Maruhn, Nucl. Phys. A595 (1995) 383.
L.P. Csernai and J.I. Kapusta, Phys. Rev. D46 (1992) 1379.
D.H. Rischke, Nucl. Phys. A610 (1996) 88c.
H. Stöcker and W. Greiner, Phys. Rep. 137 (1986) 277; N.S. Amelin et al., Phys. Rev. Lett. 67 (1991) 1523.
P. Danielewicz and G. Odyniec, Phys. Lett. B157 (1985) 146.
J. Brachmann, A. Dumitru, H. Stöcker and W. Greiner, Eur. Phys. J. A8 (2000) 549.
L.P. Csernai and D. Röhrich, Phys. Lett. B458 (1999) 454; J. Brachmann et al., Phys. Rev. C61 (2000) 024909.
H. Liu et al. [E895 Collaboration], Phys. Rev. Lett. 84 (2000) 5488.
J.D. Gunton, M. San Miguel and P.S. Sahni, “The Dynamics of First-Order Phase Transitions,” in Phase Transitions and Critical Phenomena, eds C. Domb and J.L. Lebowitz, Academic Press, London, 1983, Vol. 8.
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Dumitru, A., Brachmann, J., Fraga, E.S. et al. Hydrodynamic models for heavy-ion collisions and beyond. APH N.S., Heavy Ion Physics 14, 121–131 (2001). https://doi.org/10.1556/APH.14.2001.1-4.12
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DOI: https://doi.org/10.1556/APH.14.2001.1-4.12