https://doi.org/10.1140/epjc/s10052-019-7543-4
Regular Article - Theoretical Physics
Molecular 
states from meson–baryon interaction
1
Department of Physics, Guangxi Normal University, Guilin, 541004, China
2
Institute for Experimental Physics, Department of Physics, University of Hamburg, Luruper Chaussee 149, 22761, Hamburg, Germany
3
Instituto de Física, Universidade de São Paulo, Rua do Matão 1371, Butantã, São Paulo, São Paulo, CEP 05508-090, Brazil
4
Guangxi Key Laboratory of Nuclear Physics and Technology, Guangxi Normal University, Guilin, 541004, China
5
Departamento de Física Teórica and IFIC, Centro Mixto Universidad de Valencia-CSIC Institutos de Investigación de Paterna, Aptdo. 22085, 46071, Valencia, Spain
* e-mail: yuqx@mail.bnu.edu.cn
Received:
7
October
2019
Accepted:
8
December
2019
Published online:
21
December
2019
We have studied the meson–baryon interaction in coupled channels with the same quantum numbers of . The interaction is attractive in some channels and of sufficient intensity to lead to bound states or resonances. We use a model describing the meson–baryon interaction based on an extrapolation of the local hidden gauge approach to the heavy sector, which has been successfully used in predicting 
and hidden charm states. We obtain many states, some of them narrow or with zero width, as a consequence of the interaction, which qualify as molecular states in those channels. The success in related sectors of the picture used should encourage the experimental search for such states.
© The Author(s), 2019
