Decays Ξb → Λbπ and diquark correlations in hyperons

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Abstract

The decays Ξb→Λbπ are strangeness changing weak transitions involving only the light diquark in the baryon. Thus these decays can test the properties of such diquarks, in particular the suggestions existing in the literature of enhanced correlations in JP=0+ light diquarks. We revisit the estimates of the rates of these decays and point out that with the enhanced correlation their branching fraction can reach a few percent and may become visible in the measurements of differences of the lifetimes of b baryons.

Original languageEnglish (US)
Article number033016
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume90
Issue number3
DOIs
StatePublished - Aug 26 2014

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