2016/12/18 by Boyle, Peter, Gülpers, Vera, Harrison, James +3
#FOS: Physical sciences #High Energy Physics - Lattice (hep-lat)
paper · doi:10.48550/arxiv.1612.05962
We present an exploratory study of the electromagnetic corrections to meson masses and the hadronic vacuum polarization using Nf=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.