Bottom-charmed baryons in a nonrelativistic quark model

TL;DR

This paper predicts the mass spectra and decay properties of bottom-charmed baryons using a nonrelativistic quark model, providing guidance for future experimental searches and theoretical studies.

Contribution

It offers the first detailed predictions of bottom-charmed baryon masses and decay behaviors within a nonrelativistic quark framework, including narrow state identification.

Findings

Predicted masses of key bottom-charmed baryons around 6953-7109 MeV.

Identified some $ ho$-mode and hybrid states as extremely narrow and detectable.

Results support heavy quark symmetry in bottom-charmed baryons.

Abstract

In this work, we study the low-lying mass spectra for bottom-charmed baryons in a nonrelativistic quark model by solving the three-body Schr\"odinger equation. The lowest $\Xi_{bc}$, $\Xi_{bc}^\prime$, $\Omega_{bc}$, and $\Omega_{bc}^\prime$ states are predicted to be about 6979, 6953, 7109, and 7092 MeV, respectively. Also, the strong decays for the low-lying excited states are investigated. Our results indicate that some of $\lambda-$mode $P-$wave bottom-charmed baryons are relatively narrow, which can be searched for in future experiments. For the low-lying $\rho-$mode and $\rho-\lambda$ hybrid states, their strong decays are highly suppressed and they can survive as extremely narrow states. Moreover, the mass spectra and strong decays for bottom-charmed baryons preserve the heavy quark symmetry well. We hope our calculations can provide helpful information for further experimental and theoretical researches.