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arXiv 1011.6507hep-ph
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手征相变和真空涨落的作用

The chiral phase transition and the role of vacuum fluctuations

Rashid Khan, Lars T. Kyllingstad

摘要:

本文用优化微扰理论研究了夸克-介子有效模型中的手征相变。自由能中的某些项在计算中经常被忽略,因为假定它们的贡献可以忽略不计。我们表明,这是不一定的情况下,和顺序的相变,以及临界温度,在很大程度上取决于哪些贡献包括在内。

英文摘要:

We investigate the chiral phase transition in the quark-meson effective model using optimised perturbation theory to one loop. Certain terms in the free energy are frequently omitted in calculations, on the assumption that their contribution is negligible. We show that this is not necessarily the case, and that the order of the phase transition, as well as the critical temperature, depends heavily on which contributions are included.

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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