https://doi.org/10.1140/epjc/s10052-020-7890-1
Regular Article - Theoretical Physics
Selected strong decays of pentaquark State 
in a chiral constituent quark model
1
Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
2
Theoretical Physics Center for Science Facilities (TPCSF), CAS, Beijing, 100049, China
3
School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 101408, China
4
College of Physics and Technology, Guangxi Normal University, Guilin, 541004, China
5
School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 101408, China
* e-mail: dongyb@ihep.ac.cn
Received:
24
February
2020
Accepted:
30
March
2020
Published online:
27
April
2020
The newly confirmed pentaquark state has been treated as a weakly bound 
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 state are studied with the obtained wave function. It is shown that the width of the 
decay is overwhelmed and the branching ratios of the 
and 
decays are both less than 1 percentage.
© The Author(s), 2020
