Spectrum of singly heavy baryons from a chiral effective theory of diquarks

Yonghee Kim, Emiko Hiyama, Makoto Oka, Kei Suzuki

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The mass spectra of singly charmed and bottom baryons, Λc/b(1/2±,3/2-) and Ξc/b(1/2±,3/2-), are investigated using a nonrelativistic potential model with a heavy quark and a light diquark. The masses of the scalar and pseudoscalar diquarks are taken from a chiral effective theory. The effect of UA(1) anomaly induces an inverse hierarchy between the masses of strange and nonstrange pseudoscalar diquarks, which leads to a similar inverse mass ordering in ρ-mode excitations of singly heavy baryons.

Original languageEnglish
Article number014004
JournalPhysical Review D
Volume102
Issue number1
DOIs
Publication statusPublished - Jul 1 2020

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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