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arXiv 2410.07585hep-lat
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动力学 QCD 中中心涡旋对 overlap 夸克传播子的影响

Influence of center vortices on the overlap quark propagator in dynamical QCD

Adam Virgili, Waseem Kamleh, Derek B. Leinweber

AI总结:

本文扩展了前期研究,在动力学 QCD 系综上探究了移除中心涡旋对 overlap 夸克传播子的影响,发现仅涡旋场能重现动力学质量产生,进一步证实了中心涡旋与动力学费米子在介导 QCD 非微扰现象中的重要关系。

摘要:

有强有力的证据支持中心涡旋是禁闭和动力学手征对称性破缺——非微扰 QCD 的两个关键特征——的基础。在我们最近的快报 [ arXiv:2305.18690 ] 中,我们发现在具有接近物理夸克质量的全 QCD 中,移除涡旋后动力学质量产生消失。在这项工作中,我们扩展了这些结果,并在相同的动力学 QCD 系综上,考虑了在多个价夸克质量下中心涡旋移除对 overlap Landau 规范夸克传播子的影响,同时保持接近物理的海夸克质量固定。在仔细应用平滑过程后,我们还发现动力学质量产生在相应的仅涡旋场上被重现。这种仅涡旋的动力学质量与未触及的 Monte Carlo 规范场结果在定性上是一致的。本文报告的结果进一步证实了动力学费米子与中心涡旋之间的重要关系,以及它们对 QCD 中非微扰现象的介导作用。

英文摘要:

There is strong evidence supporting center vortices as underpinning confinement and dynamical chiral symmetry breaking -- the two key features of nonperturbative QCD. In our recent letter [ arXiv:2305.18690 ] we find that dynamical mass generation vanishes upon vortex removal in full QCD with a near-physical quark mass. In this work we extend those results and consider the influence of center vortex removal on the overlap Landau-gauge quark propagator at multiple valence quark masses on the same dynamical QCD ensemble, keeping fixed the near-physical sea quark mass. After carefully applying a smoothing process we also find that dynamical mass generation is reproduced on the corresponding vortex-only fields. This vortex-only dynamical mass shows qualitative agreement with the untouched Monte Carlo gauge field results. The results reported herein lend further credence to the important relationship between dynamical fermions and center vortices and the mediation of nonperturbative phenomena in QCD.

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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