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论文类型：期刊论文

发表时间：2010-10-15

发表刊物：Phys.Rev. D

学科门类：理学

一级学科：物理学

卷号：82

页面范围：074013

摘要：We study the fluctuations and correlations of conserved charges, such as the baryon number, the electric charge and the strangeness, at the finite temperature and the nonzero baryon chemical potential in an effective model. The fluctuations are calculated up to the fourth-order and the correlations to the third-order. We find that the second-order fluctuations and correlations have a peak or valley structure when the chiral phase transition takes place with the increase of the baryon chemical potential; the third-order fluctuations and correlations change their signs during the chiral phase

备注：arXiv:1008.3684 [hep-ph]，论文作者按姓氏排序，*为通讯作者