@article{f62562a12e9e416989bd31ede388104e,
title = "Spectrum of singly heavy baryons from a chiral effective theory of diquarks",
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. ",
author = "Yonghee Kim and Emiko Hiyama and Makoto Oka and Kei Suzuki",
note = "Funding Information: We thank Masayasu Harada and Yan-Rui Liu for useful discussions. This work was supported in part by JSPS KAKENHI Grants No. JP18H05407 (E. H.), No. JP19H05159 (M. O.), and No. JP17K14277 (K. S.). Publisher Copyright: {\textcopyright} 2020 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"}Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.",
year = "2020",
month = jul,
day = "1",
doi = "10.1103/PhysRevD.102.014004",
language = "English",
volume = "102",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "American Physical Society",
number = "1",
}