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Fluctuations in hadronizing quark gluon plasma
被引:10
|作者:
Csernai, L. P.
[1
,2
]
Mocanu, G.
[3
]
Neda, Z.
[3
]
机构:
[1] Univ Bergen, Dept Phys & Technol, N-5007 Bergen, Norway
[2] Wigner Res Ctr Phys, H-1525 Budapest, Hungary
[3] Univ Babes Bolyai, Dept Phys, Cluj Napoca, Romania
来源:
关键词:
D O I:
10.1103/PhysRevC.85.068201
中图分类号:
O57 [原子核物理学、高能物理学];
学科分类号:
070202 ;
摘要:
The dynamical development of the cooling and hadronizing quark gluon plasma (QGP) is studied in a simple model assuming critical fluctuations in the QGP to hadronic matter and a first-order transition in a small finite system. We consider an earlier determined free-energy density curve in the neighborhood of the critical point, with two local minima corresponding to the equilibrium hadronic and QGP configurations. In this approach the divergence at e = 0 eliminates fluctuations with negative or zero energy. The barrier between the equilibrium states is obtained from an estimated value of the surface tension between the two phases. We obtain a characteristic behavior for the skewness and the kurtosis of energy density fluctuations, which can be studied via a beam energy scan program.
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