Probing CP Asymmetries in Charm Baryons Decays

Abstract

With the first evidence of direct CP violation in $D^0 \to K^+K^-/\pi^+\pi^-$ there is a strong reason to probe CP asymmetries in charm baryons in three-body final states $\Lambda_c \to p\pi^+\pi^-/pK^+K^-$ & $\Lambda_c \to pK^+\pi^-$ with $\Lambda_c \to pK^-\pi^+$ to calibrate them. Analyzing the Dalitz plots carefully allows to find the 'existence' of New Dynamics (ND) and its `features'. One can test different methods to probe CP asymmetries. Final data from CDF and D0 experiments have advantage by comparing $\Lambda_c $ with $\bar \Lambda_c $ directly from $p \bar p $ collisions. LHCb will need more data with $\bar \Lambda_c$ transitions.