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arXiv · 2307.04939

Masses and radiative decay widths of S- and P-wave singly-, doubly- and triply-heavy charm and bottom baryons

Emmanuel Ortiz-Pacheco·Roelof Bijker
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Abstract

We present a study of mass spectra and electromagnetic couplings of S- and P-wave baryons containing one, two or three heavy quarks, either charm (c) or bottom (b), in the framework of a non-relativistic harmonic oscillator quark model. A simultaneous fit to 41 known masses of heavy baryons (40 singly-heavy and 1 doubly-heavy) shows a r.m.s. deviation of 19 MeV. We present equal-spacing mass rules for excited baryons which may help to assign quantum numbers to experimentally observed heavy baryons. Explicit expressions are derived for electromagnetic couplings, both for spin-flavor matrix elements and radial integrals.

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Emmanuel Ortiz-Pacheco, Roelof Bijker. 2023-07-10. Masses and radiative decay widths of S- and P-wave singly-, doubly- and triply-heavy charm and bottom baryons. https://doi.org/10.1103/physrevd.108.054014

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