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Title: Charged multi-hadron systems in lattice QCD+QED
Author: Beane, Silas R.
Detmold, William
Horsley, Roger
Illa, Marc
Jafry, Murtaza
Murphy, D. J.
Nakamura, Y.
Perlt, H.
Rakow, P. E. L.
Schierholz, Gerrit
Shanahan, P. E.
Stüben, H.
Wagman, Michael
Winter, Frank
Young, R. D.
Zanotti, J. M.
Keywords: Hadrons
Teoria dels reticles
Lattice theory
Issue Date: 16-Mar-2021
Publisher: American Physical Society
Abstract: Systems with the quantum numbers of up to 12 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 nonrelativistic 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 multihadron 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 multihadron systems.
Note: Reproducció del document publicat a:
It is part of: Physical Review D, 2021, vol. 103, num. 5, p. 054504
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ISSN: 2470-0010
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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