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arXiv 2212.03224hep-lathep-phhep-th
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含动力学夸克的旋转QCD中的热相变

Thermal phase transitions in rotating QCD with dynamical quarks

V. V. Braguta, A. Yu. Kotov, A. A. Roenko, D. A. Sychev

AI总结:

本文首次用格点方法研究含N_f=2动力学clover改进Wilson夸克的旋转QCD,发现胶子与费米子旋转对临界温度作用相反,但总体上赝临界温度随角速度增大而升高。

摘要:

相对论性旋转会引起QCD临界温度的改变。多种唯象模型和有效模型预测,在旋转QCD中临界温度会降低。然而,格点模拟表明,胶球动力学中的临界温度会因旋转而升高。我们将格点研究扩展到含动力学费米子的理论中。我们给出了具有$N_f=2$动力学clover改进Wilson夸克的旋转QCD的首批格点结果。我们还分别研究了旋转对胶子自由度和费米子自由度的影响。结果表明,胶子和费米子的分别旋转对临界温度具有相反的效应。总体而言,QCD中的赝临界温度随角速度增大而升高。本文还讨论了结果对π介子质量的依赖关系。

英文摘要:

Relativistic rotation causes a change of QCD critical temperatures. Various phenomenological and effective models predict a decrease of the critical temperatures in rotating QCD. Nevertheless, lattice simulations showed that the critical temperature in gluodynamics increases due to rotation. We extend the lattice study to the theory with dynamical fermions. We present the first lattice results for rotating QCD with $N_f=2$ dynamical clover-improved Wilson quarks. We also study separately the effect of rotation on gluonic and fermionic degrees of freedom. It is shown that separate rotations of gluons and fermions have opposite effects on the critical temperatures. In aggregate, the pseudo-critical temperatures in QCD increase with angular velocity. Dependence of the results on the pion mass is also discussed.

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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