Quark model description of the \Lambda_c(2940)^+ as a molecular D^*N state and the possible existence of the \Lambda_b(6248)
High Energy Physics - Phenomenology
2015-06-11 v1 Nuclear Theory
Abstract
The \Lambda_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^\pi=3/2^- channel. The partial widths \Lambda_c(2940)^+\to ND and \Lambda_c(2940)^+\to \Sigma_c \pi are 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.
Keywords
Cite
@article{arxiv.1210.2633,
title = {Quark model description of the \Lambda_c(2940)^+ as a molecular D^*N state and the possible existence of the \Lambda_b(6248)},
author = {P. G. Ortega and D. R. Entem and F. Fernández},
journal= {arXiv preprint arXiv:1210.2633},
year = {2015}
}
Comments
5 pages, no figures, 4 tables