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arXiv · 2401.06522

Update on the gradient flow scale on the 2+1+1 HISQ ensembles

Alexei Bazavov·Claude Bernard·Carleton E. DeTar·Aida X. El-Khadra·Elvira Gámiz·Steven Gottlieb·Anthony V. Grebe·Urs M. Heller·William I. Jay·Andreas S. Kronfeld·Yin Lin
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Abstract

We report on the ongoing effort of improving the determination of the gradient flow scale on the (2+1+1)-flavor HISQ ensembles generated by the MILC collaboration. We compute the scales $\sqrt{t_0}/a$ and $w_0/a$ with the Wilson and Symanzik flow using three discretizations for the action density: clover, Wilson and tree-level Symanzik improved. For the absolute scale setting, we intend to employ the $\Omega$-baryon mass, but are also using the pion decay constant while the $\Omega$-mass calculations are in progress.

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Alexei Bazavov, Claude Bernard, Carleton E. DeTar, Aida X. El-Khadra, Elvira Gámiz, Steven Gottlieb, Anthony V. Grebe, Urs M. Heller, William I. Jay, Andreas S. Kronfeld, Yin Lin. 2024-01-12. Update on the gradient flow scale on the 2+1+1 HISQ ensembles. https://arxiv.org/abs/2401.06522

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