Abstract

The newly confirmed pentaquark state Pc(4312) has been treated as a weakly bound (ΣcD¯) state by a well-established chiral constituent quark model and by a dynamical calculation on quark degrees of freedom where the quark exchange effect is accounted for. The obtained mass 4308 MeV agrees with data. In this work, the selected strong decays of the Pc(4312) state are studied with the obtained wave function. It is shown that the width of the ΛcD¯ decay is overwhelmed and the branching ratios of the pηc and pJ/ψ decays are both less than 1 percentage.

Details

Title
Selected strong decays of pentaquark State Pc(4312) in a chiral constituent quark model
Author
Dong Yubing 1 ; Shen Pengnian 2 ; Huang, Fei 3 ; Zhang Zongye 1 

 Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China (GRID:grid.418741.f) (ISNI:0000 0004 0632 3097); Theoretical Physics Center for Science Facilities (TPCSF), CAS, Beijing, China (GRID:grid.9227.e) (ISNI:0000000119573309); University of Chinese Academy of Sciences, School of Physical Sciences, Beijing, China (GRID:grid.410726.6) (ISNI:0000 0004 1797 8419) 
 Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China (GRID:grid.418741.f) (ISNI:0000 0004 0632 3097); Theoretical Physics Center for Science Facilities (TPCSF), CAS, Beijing, China (GRID:grid.9227.e) (ISNI:0000000119573309); Guangxi Normal University, College of Physics and Technology, Guilin, China (GRID:grid.459584.1) (ISNI:0000 0001 2196 0260) 
 University of Chinese Academy of Sciences, School of Nuclear Science and Technology, Beijing, China (GRID:grid.410726.6) (ISNI:0000 0004 1797 8419) 
Publication year
2020
Publication date
Apr 2020
Publisher
Springer Nature B.V.
ISSN
14346044
e-ISSN
14346052
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2395154541
Copyright
© The Author(s) 2020. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.