PoS - Proceedings of Science
Volume 396 - The 38th International Symposium on Lattice Field Theory (LATTICE2021) - Oral presentation
Isospin-breaking Effects in Octet and Decuplet Baryon Masses
A. Segner*, A. Hanlon, R. Hudspith, A. Risch and H. Wittig
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Pre-published on: May 16, 2022
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We present work designed to compute baryon masses on $N_f = 2 + 1$ CLS ensembles including
isospin-breaking effects due to non-degenerate light quark masses and electromagnetic interactions.
These effects are determined at leading order via a perturbative expansion around the iso-symmetric
theory. We furthermore apply a group-theoretical operator construction for the various interpolators
describing the different members of the baryon octet and decuplet based on a classification by spin,
parity, and flavor content.
DOI: https://doi.org/10.22323/1.396.0095
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