Decays ΞbΛbπ and diquark correlations in hyperons

Xin Li and M. B. Voloshin
Phys. Rev. D 90, 033016 – Published 26 August 2014

Abstract

The decays ΞbΛbπ 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.

  • Received 18 July 2014

DOI:https://doi.org/10.1103/PhysRevD.90.033016

© 2014 American Physical Society

Authors & Affiliations

Xin Li1 and M. B. Voloshin1,2,3

  • 1School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
  • 2William I. Fine Theoretical Physics Institute, University of Minnesota, Minneapolis, Minnesota 55455, USA
  • 3Institute of Theoretical and Experimental Physics, Moscow 117218, Russia

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Issue

Vol. 90, Iss. 3 — 1 August 2014

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