Abstract
Inspired by the present experimental results of charged charmonium-like states , we present a systematic study of the tetraquark states in a color flux-tube model with a multibody confinement potential. Our investigation indicates that charged charmonium-like states or , , or , , , and can be described as a family of tetraquark states with the quantum numbers and of and , and , and , and , and , and and , respectively. The predicted lowest mass charged tetraquark state with and lies at in the model. These tetraquark states have compact three-dimensional spatial configurations similar to a rugby ball with higher orbital angular momentum between the diquark and antidiquark corresponding to a more prolate spatial distribution. The multibody color flux tube, a collective degree of freedom, plays an important role in the formation of those charged tetraquark states. However, the two heavier charged states and cannot be explained as tetraquark states in this model approach.
- Received 22 July 2015
DOI:https://doi.org/10.1103/PhysRevD.92.034027
© 2015 American Physical Society