Electromagnetic Corrections to Meson Masses and the HVP

Abstract

We present an exploratory study of the electromagnetic corrections to meson masses and the hadronic vacuum polarization using $N_f=2+1$ Domain Wall fermions. These corrections are estimated with two different approaches, a stochastic approach using $U(1)$ gauge configurations for the photon fields, and a perturbative approach through a QED perturbative expansion of the QCD+QED path integral. We compare results and statistical errors from both methods.

14 pages, 11 figures, presented at the 34th annual International Symposium on Lattice Field Theory, 24-30 July 2016, University of Southampton, UK

References in corpus (6)

• Ab initio calculation of the neutron-proton mass difference
• 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
• The kaon semileptonic form factor in Nf=2+1 domain wall lattice QCD with physical light quark masses
• Inclusion of isospin breaking effects in lattice simulations

Cited by in corpus (1)

• Isospin breaking corrections to meson masses and the hadronic vacuum polarization: a comparative study