Horsley, R. and Koumi, Z. and Nakamura, Y. and Perlt, H. and Pleiter, D. and Rakow, P. E. L. and Schierholz, G. and Schiller, A. and Stueben, H. and Young, R. D. and Zanotti, J. M. (2019) Isospin splittings in the decuplet baryon spectrum from dynamical QCD plus QED. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 46 (11): 115004. ISSN 0954-3899, 1361-6471
Full text not available from this repository. (Request a copy)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: | CHARGE-SYMMETRY; VIOLATION; NUCLEON; BREAKING; MASSES; SYSTEM; lattice QCD plus QED; isospin splittings; decuplet |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 24 Mar 2020 13:23 |
| Last Modified: | 24 Mar 2020 13:23 |
| URI: | https://pred.uni-regensburg.de/id/eprint/25901 |
Actions (login required)
 |
View Item |
