Extracting $\gamma$ from CP violating decays of bottom baryons

Abstract

The observation of CP violation in meson decays is a testament to the Cabibbo-Kobayashi-Maskawa (CKM) quark mixing paradigm, and an integral part of the Standard Model (SM). The SM also predicts the existence of CP violation in baryon decays that is yet to be observed. A critical test of the SM requires that CP violation be measured in baryon decays as well, in order to verify that it agrees with the measurement using meson decays. In this paper, we propose a modification to the recently proposed method to measure CP violating phase $\gamma$ in $b$-baryons, using interference arising implicitly due to Bose symmetry considerations of the decay amplitudes.