Identification of Y (4008), Y (4140), Y (4260), and Y (4360) as Tetraquark States.
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| Title: | Identification of Y (4008), Y (4140), Y (4260), and Y (4360) as Tetraquark States. |
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| Authors: | Zhou Ping1, Deng Cheng-Rong1 crdeng@cqjtu.edu.cn, Ping Jia-Lun2 jlping@njnu.edu.cn |
| Source: | Chinese Physics Letters. Oct2015, Vol. 32 Issue 10, p1-1. 1p. |
| Subjects: | Tetraquark, Angular momentum (Mechanics), Orbital momentum operators, Charmonium, Hamiltonian mechanics |
| Abstract: | Within the framework of a color flux-tube model with a four-body confinement potential, the tetraquark states [cq][c¯q¯] (q = u or d) with I JPC = 01− − are systematically investigated. The numerical results indicate that states Y (4008), Y (4140), Y (4260), and Y (4360) can be uniformly described as tetraquark states [cq][c¯q¯] with n2S+1 LJ of 11 P1, 15 P1, 25 P1 and 15F1, respectively, in the color flux-tube model. They are compact three-dimensional spatial configurations similar to a rugby ball, higher orbital angular momentum L, more prolate. The four-body confinement interaction based on a color flux-tube picture should be responsible for the formation of those compact tetraquark states. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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