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arXiv 1105.4899hep-phhep-lat
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用QCD低能有效场论联系动力学胶子质量与手征对称性破缺

Linking Dynamical Gluon Mass to Chiral Symmetry Breaking via a QCD Low Energy Effective Field Theory

O. Oliveira, W. de Paula, T. Frederico

摘要:

本文讨论了一个具有标量色八重态场的QCD低能有效场论模型。该模型将胶子质量、组分夸克质量和夸克凝聚联系起来。胶子质量约为$\sqrt{N_c}\, Λ_{QCD}$,夸克凝聚体与胶子质量的平方成正比。该模型表明,手征对称性的恢复和解除禁闭的转变发生在相同的温度下,在过渡附近,凝聚的临界指数是胶子质量的两倍。该模型也有利于胶子传播子解的退耦。

英文摘要:

A low energy effective field theory model for QCD with a scalar color octet field is discussed. The model relates the gluon mass, the constituent quark masses and the quark condensate. The gluon mass comes about $\sqrt{N_c}\, Λ_{QCD}$ with the quark condensate being proportional to the gluon mass squared. The model suggests that the restoration of chiral symmetry and the deconfinement transition occur at the same temperature and that, near the transition, the critical exponent for the condensate is twice the gluon mass one. The model also favors the decoupling like solution for the gluon propagator.

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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