Published December 2021 | Version v1
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Isospin-breaking effects in octet and decuplet baryon masses

Creators

  • 1. Mainz University (Germany). Institute für Kernphysik
  • 2. Brookhaven National Laboratory, Upton, NY (United States). Physics Dept.
  • 3. Deutsches Elektronen-Synchrotron (DESY), Zeuthen (Germany). John von Neumann-Institut für Computing NIC
  • 4. Mainz University (Germany). PRISMA+ Cluster of Excellence
  • 5. Helmholtzzentrum für Schwerionenforschung, Darmstadt (Germany)
  • 6. Helmholtz Institut Mainz (Germany)

Description

We present work designed to compute baryon masses on Nf=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.

Availability note (English)

Also available from: http://dx.doi.org/10.48550/arXiv.2112.08262

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Additional details

Identifiers

DOI
10.48550/arXiv.2112.08262;

Publishing Information

Imprint Pagination
8 p.
ISSN
0418-9833
Report number
DESY--21-208

Conference

Title
38. International Symposium on Lattice Field Theory (Online)
Acronym
LATTICE 2021
Dates
26-30 Jul 2021
Place
Cambridge, MA (United States)

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
53114441
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BARYON OCTETS; BARYONS; ELECTROMAGNETIC INTERACTIONS; FLAVOR MODEL; ISOSPIN; MASS; SPIN
Descriptors DEC
ANGULAR MOMENTUM; COMPOSITE MODELS; ELEMENTARY PARTICLES; FERMIONS; FUNDAMENTAL INTERACTIONS; HADRONS; INTERACTIONS; MATHEMATICAL MODELS; MULTIPLETS; PARTICLE MODELS; PARTICLE MULTIPLETS; PARTICLE PROPERTIES; QUARK MODEL

Optional Information

Secondary number(s)
MITP--21-066