Isospin symmetry breaking effects in the pion and nucleon masses

Abstract

We investigate the electromagnetic mass splittings in the pseudoscalar meson and nucleon systems by combining 2+1 flavor domain wall fermion gauge configurations, generated by the RBC and UKQCD collaborations, and quenched, non-compact, lattice QED configurations. We analyze finite volume effects by using $16^3\times 32$ and $24^3\times 64$ lattices.

Talk given at The XXVI International Symposium on Lattice Field Theory, LATTICE 2008 - Williamsburg, Virginia, USA. July 14 - 19, 2008

References in corpus (6)

• Electromagnetic Splittings and Light Quark Masses in Lattice QCD
• 2+1 flavor domain wall QCD on a (2 fm)^3 lattice: light meson spectroscopy with Ls = 16
• Strong-Isospin Violation in the Neutron-Proton Mass Difference from Fully-Dynamical Lattice QCD and PQQCD
• Determination of light quark masses from the electromagnetic splitting of pseudoscalar meson masses computed with two flavors of domain wall fermions
• First results from 2+1-Flavor Domain Wall QCD: Mass Spectrum, Topology Change and Chiral Symmetry with $L_s=8$
• Electromagnetic Corrections in Partially Quenched Chiral Perturbation Theory