Horsley, R, Koumi, Z, Nakamura, Y, Perlt, H, Pleiter, D, Rakow, PEL 
ORCID: 0000-0003-4486-2158, Schierholz, G, Schiller, A, Stueben, H, Young, RD et al (show 1 more authors)
(2019)
Isospin splittings in the decuplet baryon spectrum from dynamical QCD plus QED.
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 46 (11).
p. 115004.
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Abstract
We report a new analysis of the isospin splittings within the decuplet baryon spectrum. Our numerical results are based upon five ensembles of dynamical QCD + QED lattices. The analysis is carried out within a flavour-breaking expansion which encodes the effects of breaking the quark masses and electromagnetic charges away from an approximate SU(3) symmetric point. The results display total isospin splittings within the approximate SU(2) multiplets that are compatible with phenomenological estimates. Further, new insight is gained into these splittings by separating the contributions arising from strong and electromagnetic effects. We also present an update of earlier results on the octet baryon spectrum.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | lattice QCD plus QED, isospin splittings, decuplet |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 25 Jul 2019 09:24 |
| Last Modified: | 19 Jan 2023 00:36 |
| DOI: | 10.1088/1361-6471/ab32c1 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3050271 |
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