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

Yonghee Kim, Emiko Hiyama, Makoto Oka, Kei Suzuki

研究成果: Contribution to journalArticle査読

4 被引用数 (Scopus)

抄録

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.

本文言語英語
論文番号014004
ジャーナルPhysical Review D
102
1
DOI
出版ステータス出版済み - 7 1 2020

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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