Strong two-body decays of the Lambdac(2940)+ in a hadronic molecule picture

TL;DR

This paper investigates the Lambdac(2940)+ baryon as a hadronic molecule of a nucleon and D* meson, predicting decay channels and quantum number constraints consistent with experimental data.

Contribution

It proposes a molecular model for Lambdac(2940)+ and predicts its decay channels, ruling out certain quantum number assignments based on decay width analysis.

Findings

The J(P)=1/2+ hypothesis aligns with observed decay widths.

The J(P)=1/2- hypothesis is inconsistent with data.

Predicted decay channels match experimental observations.

Abstract

The Lambdac(2940)+ baryon with possible quantum numbers J(P) = 1/2+ and 1/2- is studied as a molecular state composed of a nucleon and D* meson. We give predictions for the strong two-body decay channels Lambdac(2940)+ to p D0, Sigmac(++) pi(-) and Sigmac(0) pi(+) where the sum of partial widths is consistent with current data for the case of J(P) = 1/2(+). The case of J(P) = 1/2(-) is shown to be ruled out.