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Abstract
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.
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Details
1 Guangxi Normal University, Department of Physics, Guilin, China (GRID:grid.459584.1) (ISNI:0000 0001 2196 0260); University of Hamburg, Institute for Experimental Physics, Department of Physics, Hamburg, Germany (GRID:grid.9026.d) (ISNI:0000 0001 2287 2617)
2 Guangxi Normal University, Department of Physics, Guilin, China (GRID:grid.459584.1) (ISNI:0000 0001 2196 0260); Universidade de São Paulo, Instituto de Física, São Paulo, Brazil (GRID:grid.11899.38) (ISNI:0000 0004 1937 0722)
3 Guangxi Normal University, Department of Physics, Guilin, China (GRID:grid.459584.1) (ISNI:0000 0001 2196 0260); Guangxi Normal University, Guangxi Key Laboratory of Nuclear Physics and Technology, Guilin, China (GRID:grid.459584.1) (ISNI:0000 0001 2196 0260)
4 Guangxi Normal University, Department of Physics, Guilin, China (GRID:grid.459584.1) (ISNI:0000 0001 2196 0260); Centro Mixto Universidad de Valencia-CSIC Institutos de Investigación de Paterna, Departamento de Física Teórica and IFIC, Valencia, Spain (GRID:grid.5338.d) (ISNI:0000 0001 2173 938X)