Large CP violation in charmed baryon decays

2024/04/30 by He, Xiao-Gang, Liu, Chia-Wei · 3 citations
#FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.2404.19166

Abstract

This work presents the first detailed numerical predictions of CP violation in antitriplet charmed baryon decays. Adopting the flavor SU(3)_F symmetry and the final state re-scattering framework, we relate the CKM-suppressed amplitudes to the leading ones, which are proportional to λ_b and λ_d, respectively, with λ_q = V_uqV^*_cq. Larger-than-expected CP violations are found, reaching the order of 10^-3, similar in magnitude to those in D⁰ → π⁺π^- ,K⁺K^-. This opens a promising avenue for observing CP violation in charmed baryon decays and testing the Standard Model.

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