THE PHYSICS OF ELEMENTARY PARTICLES AND FIELDS |
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Identification of Y(4008), Y(4140), Y(4260), and Y(4360) as Tetraquark States |
ZHOU Ping1, DENG Cheng-Rong1**, PING Jia-Lun2** |
1Department of Physics, Chongqing Jiaotong University, Chongqing 400074 2Department of Physics, Nanjing Normal University, Nanjing 210097
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Cite this article: |
ZHOU Ping, DENG Cheng-Rong, PING Jia-Lun 2015 Chin. Phys. Lett. 32 101201 |
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Abstract Within the framework of a color flux-tube model with a four-body confinement potential, the tetraquark states [cq][cq] (q=u or d) with IJPC=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][cq] with n2S+1LJ of 11P1, 15P1, 25P1 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.
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Received: 16 June 2015
Published: 30 October 2015
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