Isospin splitting in heavy baryons and mesons

Abstract

A recent general analysis of light-baryon isospin splittings is updated and extended to charmed baryons. The measured ${\Sigma }_c$ and ${\Xi }_c$ splittings stand out as being difficult to understand in terms of two-body forces alone. We also discuss heavy-light mesons; though the framework here is necessarily less general, we nevertheless obtain some predictions that are not strongly model-dependent.

12 pages REVTEX 3, plus 4 uuencoded ps figures, CMU-HEP93-4

References in corpus (3)

• Meson Decay Constants from Isospin Mass Splittings in the Quark Model
• Isospin Splitting in the Baryon Octet and Decuplet
• Meson Mass Splittings in the Nonrelativistic Model

Cited by in corpus (11)

• Observation of a Narrow State Decaying into ${\Xi }_c^{+}{\pi }^{-}$
• Charmed Baryon Masses in Chiral Perturbation Theory
• Scalar mesons in the Nambu--Jona-Lasinio model with 't Hooft interaction
• Mixing of Xi_c and Xi_c' Baryons
• Magnetic Moment of the ${\Lambda }_c$, ${\Xi }_{c1}^{+}$ and ${\Xi }_{c1}^0$
• Isospin mass differences of singly heavy baryons
• A New Measurement of the Masses and Widths of the Sigma_c^*++ and Sigma_c^*0 Charmed Baryons
• Screening of quark charge and mixing effects on transition moments and M1 decay widths of baryons
• Status of isospin splittings in mesons and baryons
• Sum rules for charmed baryon masses
• Long-Distance Contributions to the ${\Lambda }_b\to {\Lambda }_c{e}^{-}{\overline{\nu }}_e$ Isgur-Wise Function