We give an update on an ongoing project in which we calculate the masses of octet and decuplet
baryons including isospin-breaking effects.
To this end, we employ single- and two-state-fits to effective masses up to leading order in the
expansion in isospin-breaking parameters.
In order to remove subjective bias on asymptotic masses we furthermore compute an AIC-based
model-average of our fits, for which we show results on ensembles at lattice spacings of 0.064
fm and 0.076 fm with corresponding pion masses ranging from 220 MeV to 360 MeV.
Volume 453 -
The 40th International Symposium on Lattice Field Theory (LATTICE2023) -
Hadronic and Nuclear Spectrum and Interactions
Precision Determination of Baryon Masses including Isospin-breaking
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Pre-published on:
December 27, 2023
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Abstract
DOI: https://doi.org/10.22323/1.453.0044
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.