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arXiv · 1205.2961

1+1+1 flavor QCD + QED simulation at the physical point

S. Aoki·K. -I. Ishikawa·N. Ishizuka·K. Kanaya·Y. Kuramashi·Y. Nakamura·Y. Namekawa·M. Okawa·Y. Taniguchi·A. Ukawa·N. Ukita·T. Yoshie
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Abstract

We present the results of 1+1+1 flavor QCD+QED simulation at the physical point, in which the dynamical quark effects in QED and the up-down quark mass difference are incorporated by the reweighting technique. The physical quark masses together with the lattice spacing are determined with $m_{π^+}$, $m_{K^+}$, $m_{K^0}$ and $m_{Ω^-}$ as physical inputs. Calculations are carried out using a set of 2+1 flavor QCD configurations near the physical point generated by the non-perturbatively $O(a)$-improved Wilson quark action and the Iwasaki gauge action at $β=1.9$ on a $32^3\times 64$ lattice. We evaluate the values of the up, down and strange quark masses individually with non-perturbative QCD renormalization.

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S. Aoki, K. -I. Ishikawa, N. Ishizuka, K. Kanaya, Y. Kuramashi, Y. Nakamura, Y. Namekawa, M. Okawa, Y. Taniguchi, A. Ukawa, N. Ukita, T. Yoshie. 2012-05-14. 1+1+1 flavor QCD + QED simulation at the physical point. https://doi.org/10.1103/physrevd.86.034507

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