Deciphering Weak Decays of Triply Heavy Baryons by SU(3) Analysis

TL;DR

This paper analyzes the nonleptonic weak decays of triply heavy baryons using SU(3) symmetry, providing decay amplitude parametrizations, relations for decay widths, and potential channels for experimental reconstruction.

Contribution

It introduces a systematic SU(3) analysis of triply heavy baryon decays, which is novel in understanding their decay patterns and guiding future experimental searches.

Findings

Decay amplitudes parametrized in SU(3) irreducible representations

Relations among partial decay widths derived

Suggested decay channels for baryon reconstruction listed

Abstract

Baryons with three heavy quarks are the last missing pieces of the lowest-lying baryon multiplets in the quark model after the discovery of doubly heavy baryons. In this work, we study nonleptonic weak decays of triply heavy baryons $\Omega_{ccc}^{++}$, $\Omega_{bbb}^{-}$, $\Omega_{ccb}^{+}$, and $\Omega_{cbb}^{0}$. Decay amplitudes for various processes have been parametrized in terms of the SU(3) irreducible nonperturbative amplitudes. A number of relations for the partial decay widths can be deduced from these results that can be examined in future. Some decay channels and cascade decay modes which likely to be used to reconstruct the triply heavy baryons have been also listed.