CP-violation and U-spin symmetry in four-body bottom baryon decays

2025/04/15 by Roy, Shibasis · 1 citation
#FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.2504.10891

Abstract

In view of the recent observation of CP-violation in bottom baryon decays, we explore CP-asymmetry relations in charmless four-body decays of bottom baryons featuring fully charged hadronic final states. Starting with a general effective Hamiltonian, we derive amplitude relations among various decay modes within the framework of U-spin symmetry. These relations lead to symmetry-based predictions for CP-violating rate asymmetries in U-spin conjugate decay channels. Furthermore, we demonstrate that all leading-order amplitude relations are violated once U-spin breaking effects are taken into account.

Cited by

• U-spin sum rules for two-body decays of bottom baryons

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