Three-body decay of Λc(2595) and Λc(2625) with consideration of Σc(2455)π and Σc(2520)π in intermediate states

A. J. Arifi, H. Nagahiro, and A. Hosaka Journal link

Three-body decay of charmed baryons Λc(2595) and Λc(2625) into Λcππ are studied with effective Lagrangians in which the coupling constants are extracted from the nonrelativistic quark model. We take into account sequential processes going through Σc(2455) and Σ∗c(2520) in intermediate states. The total decay widths are sensitive to the coupling of Λc with Σcπ open channel and to Σ*cπ closed channel. We find that Λc(2595) and Λc(2625) with λ mode assignment can explain the experimental data nicely. We also show invariant mass distributions of Λc(2595) and Λc(2625) decays, which are significantly different for various quark configurations.