arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2201.03874hep-lat
收藏

稳定Wilson费米子的性质、系综和强子谱

Properties, ensembles and hadron spectra with Stabilised Wilson Fermions

Francesca Cuteri, Anthony Francis, Patrick Fritzsch, Giovanni Pederiva, Antonio Rago, Andrea Shindler, Andre Walker-Loud, Savvas Zafeiropoulos

摘要:

在这份联合贡献中,我们宣布成立“开放晶格倡议”,https://openlat1.gitlab.io,以研究稳定的威尔逊费米子(STF-F)。他们是一个新的途径QCD计算与威尔逊型费米子,我们报告的结果,我们继续研究这个框架:调整三叶草改善系数,并扩展到$a=0.12$ FM晶格间距的范围。我们将味对称点$m_π=m_K=412$ MeV固定在$a=0.055,0.064, 0.077, 0.094, 0.12$ fm上,并通过固定夸克质量矩阵的迹来定义到物理点的轨迹。目前,我们的π介子质量范围扩展到$m_π\sim200$ MeV。我们概述了我们的调整目标和战略,以及我们未来计划的合奏。首先对$f_π$和$m_π$进行缩放研究。此外,一个初步的连续外推的$m_N$的味道对称点的结果。进一步的光和奇怪的强子谱手征依赖性的第一次测定显示,这有助于检查的质量的精确测量的行动。我们也调查其他数量,如流动规范观测研究如何接近连续极限。两者合计,我们观察到,使我们能够在质量,体积和晶格间距的大范围参数进行稳定的晶格模拟。汇集资源,我们的新举措使我们报告的进展成为可能,通过它,我们将在开放的科学哲学下分享生成的仪表合奏。

英文摘要:

In this joint contribution we announce the formation of the "OPEN LATtice initiative", https://openlat1.gitlab.io, to study Stabilised Wilson Fermions (SWF). They are a new avenue for QCD calculations with Wilson-type fermions and we report results on our continued study of this framework: Tuning the clover improvement coefficient, and extending the reach of lattice spacings to $a=0.12$ fm. We fix the flavor symmetric points $m_π=m_K=412$ MeV at $a=0.055,0.064, 0.077, 0.094, 0.12$ fm and define the trajectories to the physical point by fixing the trace of the quark mass matrix. Currently our pion mass range extends down to $m_π\sim200$ MeV. We outline our tuning goals and strategy as well as our future planned ensembles. First scaling studies are performed on $f_π$ and $m_π$. Additionally results of a preliminary continuum extrapolation of $m_N$ at the flavor symmetric point are presented. Going further a first determination of the light and strange hadron spectrum chiral dependence is shown, which serves to check the quality of the action for precision measurements. We also investigate other quantities such as flowed gauge observables to study how the continuum limit is approached. Taken together we observe the SWF enable us to perform stable lattice simulations across a large range of parameters in mass, volume and lattice spacing. Pooling resources our new initiative has made our reported progress possible and through it we will share generated gauge ensembles under an open science philosophy.

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。

↑