This title appears in the Scientific Report :
2019
Please use the identifier:
http://dx.doi.org/10.1088/1361-6471/ab32c1 in citations.
Please use the identifier: http://hdl.handle.net/2128/23946 in citations.
Isospin splittings in the decuplet baryon spectrum from dynamical QCD + QED
Isospin splittings in the decuplet baryon spectrum from dynamical QCD + QED
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 elec...
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Personal Name(s): | Horsley, R. |
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Koumi, Z. (Corresponding author) / Nakamura, Y. / Perlt, H. / Pleiter, D. / Rakow, P. E. L. / Schierholz, G. / Schiller, Arwed / Stüben, H. / Young, R. D. / Zanotti, J. M. | |
Contributing Institute: |
JARA - HPC; JARA-HPC Jülich Supercomputing Center; JSC |
Published in: | Journal of physics / G G, Nuclear and particle physics, 46 (2019) 11, S. 115004 - |
Imprint: |
Bristol
IOP Publ.
2019
|
DOI: |
10.1088/1361-6471/ab32c1 |
Document Type: |
Journal Article |
Research Program: |
Axion and electric dipole moment of the nucleon Supercomputer Facility |
Link: |
Restricted Published on 2019-09-27. Available in OpenAccess from 2020-09-27. Restricted Published on 2019-09-27. Available in OpenAccess from 2020-09-27. |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/23946 in citations.
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. |