Temperature Fluctuation and Heat Capacity in Relativistic Heavy-Ion Collisions

MA Guo-Liang; MA Yu-Gang; SA Ben-Hao; WANG Kun; CAI Xiang-Zhou; WEI Yi-Bin; ZHANG Hu-Yong; LU Zhao-Hui; ZHONG Chen; CHEN Jin-Gen; LONG Jia-Li; HE Ze-Jun; SHEN Wen-Qing

Chinese Physics C> 2004, Vol. 28> Issue(4) : 398-402

Temperature Fluctuation and Heat Capacity in Relativistic Heavy-Ion Collisions

Shanghai Institute of Nuclear Research,Chinese Academy of Sciences,Shanghai 201800,China2 China Institute of Atomic Energy,Beijing 102413,China

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Abstract：
We used LUCIAE3.0 model to simulate the Pb+Pb and C+C in SPS energy. The heat capacity was then extracted from event by event temperature fluctuation. It is found that the heat capacity per hadron multiplicity decreases with the increasing of beam energy and impact parameter for a given reaction system. While the hadron mass increases, the heat capacity per hadron multiplicity rises. In addition, we found that, for a given hadron, the heat capacity per hadron multiplicity is almost the same regardless the reaction system. Some discussions were also given.

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MA Guo-Liang, MA Yu-Gang, SA Ben-Hao, WANG Kun, CAI Xiang-Zhou, WEI Yi-Bin, ZHANG Hu-Yong, LU Zhao-Hui, ZHONG Chen, CHEN Jin-Gen, LONG Jia-Li, HE Ze-Jun and SHEN Wen-Qing. Temperature Fluctuation and Heat Capacity in Relativistic Heavy-Ion Collisions[J]. Chinese Physics C, 2004, 28(4): 398-402.

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Received: 2003-06-02
Revised: 1900-01-01

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