Isospin symmetry breaking effects in the pion and nucleon masses
Ran Zhou, Thomas Blum, Takumi Doi, Masashi Hayakawa, Taku Izubuchi,, Norikazu Yamada
TL;DR
This paper studies how electromagnetic interactions cause mass differences in pions and nucleons using lattice QCD and QED simulations, accounting for finite volume effects.
Contribution
It combines 2+1 flavor domain wall fermion configurations with quenched lattice QED to analyze isospin symmetry breaking effects in hadron masses.
Findings
Electromagnetic mass splittings are quantified for pions and nucleons.
Finite volume effects are systematically analyzed.
Results contribute to understanding isospin symmetry breaking in QCD.
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 and lattices.
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Taxonomy
TopicsQuantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies · High-Energy Particle Collisions Research