Predictive CP violating relations for charmless two-body decays of beauty baryons Νb-,0 and Λb0 with flavor SU(3) symmetry
Journal
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Journal Volume
750
Pages
82-88
Date Issued
2015
Author(s)
Li, G.-N.
Abstract
Several baryons containing a heavy b-quark have been discovered. The decays of these states provide new platform for testing the standard model (SM). We study CP violation in SM for charmless two-body decays of the flavor SU(3) anti-triplet beauty baryon (b-baryon) B=(Νb-,Νb0,Λb0) in a model independent way. We found, in the flavor SU(3) symmetry limit, a set of new predictive relations among the branching ratio Br and CP asymmetry ACP for B decays, such as ACP(Νb-→K0Ν-)/ACP(Νb-→K0σ-) = -Br(Νb-→K0σ-)/Br(Νb-→K0σ-), ACP(Λb0→π-p)/ACP(Νb0→K-σ+)=-Br(Νb0→K-σ+)τΛb0/Br(Λb0→π-p)τΝb0, and ACP(Λb0→K-p)/ACP(Νb0→π-σ+)=-Br(Νb0→π-σ+)τΛb0/Br(Λb0→K-p)τΝb0. Future data from LHCb can test these relations and also other relations found.
SDGs
Type
journal article