Full QED+QCD Low-Energy Constants through Reweighting

Tomomi Ishikawa, Thomas Blum, Masashi Hayakawa, Taku Izubuchi, Chulwoo Jung, and Ran Zhou
Phys. Rev. Lett. 109, 072002 – Published 16 August 2012

Abstract

The effect of sea quark electromagnetic charge on meson masses is investigated, and first results for full QED+QCD low-energy constants are presented. The electromagnetic charge for sea quarks is incorporated in quenched QED+full QCD lattice simulations by a reweighting method. The reweighting factor, which connects quenched and unquenched QED, is estimated using a stochastic method on 2+1 flavor dynamical domain-wall quark ensembles.

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  • Received 2 March 2012

DOI:https://doi.org/10.1103/PhysRevLett.109.072002

© 2012 American Physical Society

Authors & Affiliations

Tomomi Ishikawa1,2, Thomas Blum2, Masashi Hayakawa3,4, Taku Izubuchi1,5, Chulwoo Jung5, and Ran Zhou6

  • 1RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973, USA
  • 2Physics Department, University of Connecticut, Storrs, Connecticut 06269-3046, USA
  • 3Department of Physics, Nagoya University, Nagoya 464-8602, Japan
  • 4Nishina Center, RIKEN, Wako, Saitama 351-0198, Japan
  • 5Physics Department, Brookhaven National Laboratory, Upton, New York 11973, USA
  • 6Physics Department, Indiana University, Bloomington, Indiana 47405, USA

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Issue

Vol. 109, Iss. 7 — 17 August 2012

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