TY - JOUR
T1 - Hyperons and Θs+ in holographic QCD
AU - Liu, Yizhuang
AU - Nowak, MacIej A.
AU - Zahed, Ismail
N1 - Publisher Copyright:
© 2022 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.
PY - 2022/6/1
Y1 - 2022/6/1
N2 - We revisit the holographic description of strange baryons in the context of the Sakai-Sugimoto construction, by considering the strange quark mass as heavy. Hyperons are described by a massive (K,K∗) multiplet, bound to a light-flavor instanton in bulk, much in the spirit of the Callan-Klebanov construction. The modular Hamiltonian maps onto the Landau problem, a charged particle in a two-dimensional external magnetic field, induced by the bulk Chern-Simons interaction, plus spin-orbit coupling. The ensuing holographic hyperon spectrum compares fairly with the empirical one. The holographic strange pentaquark baryon Θs+ is shown to be unbound.
AB - We revisit the holographic description of strange baryons in the context of the Sakai-Sugimoto construction, by considering the strange quark mass as heavy. Hyperons are described by a massive (K,K∗) multiplet, bound to a light-flavor instanton in bulk, much in the spirit of the Callan-Klebanov construction. The modular Hamiltonian maps onto the Landau problem, a charged particle in a two-dimensional external magnetic field, induced by the bulk Chern-Simons interaction, plus spin-orbit coupling. The ensuing holographic hyperon spectrum compares fairly with the empirical one. The holographic strange pentaquark baryon Θs+ is shown to be unbound.
UR - https://www.scopus.com/pages/publications/85134252770
U2 - 10.1103/PhysRevD.105.114021
DO - 10.1103/PhysRevD.105.114021
M3 - Article
AN - SCOPUS:85134252770
SN - 2470-0010
VL - 105
JO - Physical Review D
JF - Physical Review D
IS - 11
M1 - 114021
ER -