Direct CP and T Violation in Baryonic B Decays

TL;DR

This paper reviews direct CP and T violation in three-body baryonic B decays within the standard model, highlighting measurable asymmetries in specific decay channels accessible to current experiments.

Contribution

It emphasizes the potential for observing significant CP and T violating asymmetries in baryonic B decays at existing and upcoming experimental facilities.

Findings

CP asymmetry in B±→p p̄ K*± is about 22%

T asymmetry in B̄0→Λ p̄ π+ can reach 12%

Asymmetries are measurable at KEK, SLAC, SuperB, and LHCb

Abstract

We review the direct CP and T violation in the three-body baryonic B decays in the standard model. In particular, we emphasize that the direct CP violating asymmetry in $B^\pm\to p\bar p K^{*\pm}$ is around 22% and the direct $T$ violating asymmetry in $\bar B^0 \ra \Lambda \bar p \pi^+$ can be as large as 12%, which are accessible to the current B factories at KEK and SLAC as well as SuperB and LHCb.