Singly Cabibbo suppressed decays of Λc+ with SU(3) flavor symmetry

Abstract We analyze the weak processes of anti-triplet charmed baryons decaying to octet baryons and mesons with the SU(3) flavor symmetry and topological quark diagram scheme. We study the decay branching ratios without neglecting the contributions from O ( 15 ‾ ) for the first time in the SU(3) flavor symmetry approach. The fitting results for the Cabibbo allowed and suppressed decays of Λ c + are all consistent with the experimental data. We predict all singly Cabibbo suppressed decays. In particular, we find that B ( Λ c + → p π 0 ) = ( 1.3 ± 0.7 ) × 10 − 4 , which is slightly below the current experimental upper limit of 2.7 × 10 − 4 and can be tested by the ongoing experiment at BESIII as well as the future one at Belle-II.