The authors build a bridge between topological and rescattering amplitudes for charmed baryon decays and claim the Koerner-Pati-Woo theorem fails, suggesting a measurement of Lambda_c^+ -> Sigma^+ K_S^0.
Large CP violation in charmed baryon decays
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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 $\lambda_b$ and $\lambda_d$, respectively, with $\lambda_q = V_{uq}V^*_{cq}$. Larger-than-expected CP violations are found, reaching the order of $10^{-3}$, similar in magnitude to those in $D^0 \to \pi^+\pi^- ,K^+K^-$. This opens a promising avenue for observing CP violation in charmed baryon decays and testing the Standard Model.
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From topological amplitudes to rescattering dynamics in charmed baryon decays
The authors build a bridge between topological and rescattering amplitudes for charmed baryon decays and claim the Koerner-Pati-Woo theorem fails, suggesting a measurement of Lambda_c^+ -> Sigma^+ K_S^0.