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

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 $m_{{\pi }^{+}}$, $m_{K^{+}}$, $m_{K^0}$ and $m_{{\Omega }^{-}}$ 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 $\beta =1.9$ 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.

6 pages, 10 figres

References in corpus (5)

• Continuum Limit Physics from 2+1 Flavor Domain Wall QCD
• QED in finite volume and finite size scaling effect on electromagnetic properties of hadrons
• Electromagnetic mass splittings of the low lying hadrons and quark masses from 2+1 flavor lattice QCD+QED
• Determination of light quark masses from the electromagnetic splitting of pseudoscalar meson masses computed with two flavors of domain wall fermions
• Reweighting towards the chiral limit

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