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arXiv · 1210.2633

Quark model description of the Λ_c(2940)^+ as a molecular D^*N state and the possible existence of the Λ_b(6248)

P. G. Ortega·D. R. Entem·F. Fernández
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Abstract

The Λ_c(2940)^+ baryon is studied in a constituent quark model as a molecular state composed by nucleons and D^* mesons. A bound state with the right binding energy is found for the J^π=3/2^- channel. The partial widths Λ_c(2940)^+\to ND and Λ_c(2940)^+\to Σ_c πare calculated and the results are consistent with the experimental data. Additionally a bottom partner \bar B^*N is predicted with a mass of 6248 MeV/c^2.

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P. G. Ortega, D. R. Entem, F. Fernández. 2012-10-09. Quark model description of the Λ_c(2940)^+ as a molecular D^*N state and the possible existence of the Λ_b(6248). https://doi.org/10.1016/j.physletb.2012.12.025

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