科研之友
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摘要
The hadronization cross section in a quark plasma at finite temperature and density is calculated in the framework of the Nambu-Jona-Lasinio model with explicit chiral symmetry breaking. In contrast to the familiar temperature effect, the quark plasma at high density begins to hadronize suddenly. It leads to a sudden and strong increase of final state pions in relativistic heavy ion collisions which may be considered as a clear signature of chiral symmetry restoration.
- 出版日期2000-11
- 单位清华大学
