A Diagrammatic Analysis of Two-Body Charmed Baryon Decays with Flavor Symmetry

We study the two-body anti-triplet charmed baryon decays based on the diagrammatic approach with SU(3) avor symmetry. We extract the two W-exchange effects as E B and E 0 that contribute to the +c ! 0 K + decay, together with the relative phases, where E B gives the main contribution. Besides, we find that B (+c ! p0) = (0:8+0:9) 10, which is within the experimental upper bound. Particularly, we obtain B (+c ! 0+) = (9:3 3:6) 10, B(0c ! ; 0 K 0) = (19:3 2:8; 8:3 5:0) 10 and B(0c ! K +) = (5:6 0:8) 10, which all agree with the data. For the singly Cabibbo suppressed +c decays, we predict that B(+c ! n+; p0; +K 0) = (7:7 2:0; 7:1 1:4; 19:1 4:8)10, which are accessible to the experiments at BESIII, BELLEII and LHCb.