Isospin Mass Splittings of Baryons in Potential Models

Abstract

We discuss the isospin-breaking mass differences among baryons, with particular attention in the charm sector to the ${\Sigma }_c^{+}-{\Sigma }_c^0$, ${\Sigma }_c^{++}-{\Sigma }_c^0$, and ${\Xi }_c^{+}-{\Xi }_c^0$ splittings. Simple potential models cannot accommodate the trend of the available data on charmed baryons. More precise measurements would offer the possibility of testing how well potential models describe the non-perturbative limit of QCD.

18 pages

References in corpus (2)

• Stochastic variational method with noncentral forces
• Improved Tests of Relations for Baryon Isomultiplet Splittings

Cited by in corpus (9)

• Baryon spectroscopy
• Asymmetric Dark Matter and the hadronic spectra of hidden QCD
• Measurement of the masses and widths of the bottom baryons Sigma_b+- and Sigma_b*+-
• Isospin mass differences of singly heavy baryons
• Electromagnetic splitting for mesons and baryons using dressed constituent quarks
• Status of isospin splittings in mesons and baryons
• Measurement of the Masses and Widths of the ${\Sigma }_c(2455{)}^{+}$ and ${\Sigma }_c(2520{)}^{+}$ Baryons
• Measurements of the Sigma_c^0 and Sigma_c^{++} Mass Splittings
• New experimental tests of sum rules for charmed baryon masses