https://doi.org/10.1140/epjc/s10052-016-4476-z
Regular Article - Theoretical Physics
Possible pentaquarks with heavy quarks
1
Department of Physics and Jiangsu Key Laboratory for Numerical Simulation of Large Scale Complex Systems, Nanjing Normal University, Nanjing, 210023, People’s Republic of China
2
Department of Physics, Duke Univeristy, Durham, North Carolina, 27708, USA
3
School of Mathematics and Physics, Chongqing Jiaotong University, Chongqing, 400074, People’s Republic of China
4
Department of Physics, Nanjing University, Nanjing, 210093, People’s Republic of China
* e-mail: jlping@njnu.edu.cn
Received:
27
August
2016
Accepted:
31
October
2016
Published online:
16
November
2016
Inspired by the discovery of two pentaquarks 
and 
at the LHCb detector, we study possible hidden-charm molecular pentaquarks in the framework of quark delocalization color screening model. Our results suggest that both 
with 
and 
with 
are bounded by channels coupling. However, with may be a resonance state in the D-wave scattering process. Moreover, can be explained as the molecular pentaquark of 
with quantum numbers . The state 
with 
is a resonance, it may not be a good candidate of the observed because of the opposite parity of the state to , although the mass of the state is not far from the experimental value. In addition, the calculation is extended to the hidden-bottom pentaquarks, and similar properties to that of hidden-charm pentaquarks system are obtained.
© The Author(s), 2016
