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arXiv 0710.0362hep-ph
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稠密重子物质中的自发P宇称破缺

Spontaneous P-parity violation in dense baryon matter

S. S. Afonin, A. A. Andrianov, V. A. Andrianov, D. Espriu

摘要:

本文在有效夸克模型的框架下研究了稠密重子物质中动力学P宇称破缺的可能性。动力学P-宇称破坏可以出现在具有至少两个标量场和两个伪标量场的模型中,其中两个标量场在正常条件下都是凝聚的。在特定的耦合常数组态下,其中一个赝标场也可以凝聚在重子密度的某一值上,这一现象导致了标量场和赝标场物理自由度的混合,从而产生P宇称破缺。我们讨论了在未来的重离子碰撞实验中强相互作用中P宇称破缺的意义和可能的实验特征。

英文摘要:

We investigate possibilities for dynamical P-parity violation in dense baryon matter in the framework of effective quark models. Dynamical P-parity violation can appear in models with at least two scalar and two pseudoscalar fields, where both scalar fields are condensed at normal conditions. At special configurations of coupling constants, one of pseudoscalar fields can then also condense at some value of baryon density, the phenomenon results in mixing of the scalar and pseudoscalar physical degrees of freedom, hence, giving rise to P-parity violation. We discuss the implications and possible experimental signatures for P-parity violation in strong interactions in future experiments with heavy-ion collisions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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