Charged multi-hadron systems in lattice QCD+QED
Abstract
Systems with the quantum numbers of up to twelve charged and neutral pseudoscalar mesons, as well as one-, two-, and three-nucleon systems, are studied using dynamical lattice quantum chromodynamics and quantum electrodynamics (QCD+QED) calculations and effective field theory. QED effects on hadronic interactions are determined by comparing systems of charged and neutral hadrons after tuning the quark masses to remove strong isospin breaking effects. A non-relativistic effective field theory, which perturbatively includes finite-volume Coulomb effects, is analyzed for systems of multiple charged hadrons and found to accurately reproduce the lattice QCD+QED results. QED effects on charged multi-hadron systems beyond Coulomb photon exchange are determined by comparing the two- and three-body interaction parameters extracted from the lattice QCD+QED results for charged and neutral multi-hadron systems.
Cite
@article{arxiv.2003.12130,
title = {Charged multi-hadron systems in lattice QCD+QED},
author = {S. R. Beane and W. Detmold and R. Horsley and M. Illa and M. Jafry and D. J. Murphy and Y. Nakamura and H. Perlt and P. E. L. Rakow and G. Schierholz and P. E. Shanahan and H. Stüben and M. L. Wagman and F. Winter and R. D. Young and J. M. Zanotti},
journal= {arXiv preprint arXiv:2003.12130},
year = {2021}
}
Comments
67 pages, 29 figures. Published version