论文标题

$ n_f = 1+2+1 $ QCD+QED模拟,带有C $^\ Star $边界条件

$N_f = 1+2+1$ QCD+QED simulations with C$^\star$ boundary conditions

论文作者

Altherr, Anian, Bushnaq, Lucius, Campos, Isabel, Catillo, Marco, Cotellucci, Alessandro, Dale, Madeleine, Fritzsch, Patrick, Gruber, Roman, Lücke, Jens, Marinković, Marina Krstić, Patella, Agostino, Tantalo, Nazario, Tavella, Paola

论文摘要

我们使用OpenQ $^\ star $ d代码对RC $^\ star $ Collaboration的持续工作进行更新,以使用C $^\ star $边界条件生成完全动态的QCD+QED配置。将模拟调整为pions $ m_ {π^\ pm} \大约400 $ meV的U-对称点($ M_D = m_s $)。 The splitting of the light mesons is used as one of three tuning observables and fixed to $m_{K^0} - m_{K^\pm} \approx 5$ MeV and $m_{K^0} - m_{K^\pm} \approx 25$ MeV on ensembles with renormalized electromagnetic coupling $α_\mathrm{R} \approx α_\ mathrm {phys。} $和$α_\ mathrm {r} \大约5.5α_\ mathrm {phys。} $。我们将讨论有关我们调整策略的一些细节,并介绍介子和重子群众的计算。最后,我们还将为我们的模拟提供成本分析。有关有限体积效果和调整的更多技术细节,请参见A. cotellucci的诉讼程序。

We give an update on the ongoing effort of the RC$^\star$ collaboration to generate fully dynamical QCD+QED configurations with C$^\star$ boundary conditions using the openQ$^\star$D code. The simulations are tuned to the U-symmetric point ($m_d=m_s$) with pions at $m_{π^\pm}\approx 400$ MeV. The splitting of the light mesons is used as one of three tuning observables and fixed to $m_{K^0} - m_{K^\pm} \approx 5$ MeV and $m_{K^0} - m_{K^\pm} \approx 25$ MeV on ensembles with renormalized electromagnetic coupling $α_\mathrm{R} \approx α_\mathrm{phys.}$ and $α_\mathrm{R}\approx 5.5 α_\mathrm{phys.}$ respectively. We will discuss some details concerning our tuning strategy and present the calculation of the meson and baryon masses. Finally, we will also present a cost analysis for our simulations. More technical details on finite-volume effects and the tuning can be found in A. Cotellucci's proceedings.

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