Temperature and baryon-chemical-potential-dependent bag pressure for a deconfining phase transition.
Temperature and baryon-chemical-potential-dependent bag pressure for a deconfining phase transition.
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DOI：
10.1103/physrevd.54.3551
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发表时间：
1996-09
期刊：
影响因子：
--
通讯作者：
Patra;M. S. Singh
中科院分区：
文献类型：
--
作者：
Patra;M. S. Singh
我们探讨了由Leonidov {ital et} {ital al}开发的袋子模型的结果。为了保证相边界处的熵和重子数守恒以及平衡相变的吉布斯构造，使袋压依赖于温度和重子化学势，从而定义相变。我们表明，由此获得的袋压在固定温度下随着重子化学势的增加而产生反常的增加行为，这违背了物理解释。我们证明，在QGP相中包含微扰相互作用消除了这一困难。进一步的后果，修改袋压力进行了讨论。{版权所有}{ital 1996美国物理学会。}
We explore the consequences of a bag model developed by Leonidov {ital et} {ital al}. for the deconfining phase transition in which the bag pressure is made to depend on the temperature and baryon chemical potential in order to ensure the entropy and baryon number conservation at the phase boundary together with the Gibbs construction for an equilibrium phase transition. We show that the bag pressure thus obtained yields an anomalous increasing behavior with the increasing baryon chemical potential at a fixed temperature which defies a physical interpretation. We demonstrate that the inclusion of the perturbative interactions in the QGP phase removes this difficulty. Further consequences of the modified bag pressure are discussed. {copyright} {ital 1996 The American Physical Society.}