Identification of Y (4008), Y (4140), Y (4260), and Y (4360) as Tetraquark States
ZHOU Ping1 , DENG Cheng-Rong1** , PING Jia-Lun2**
1 Department of Physics, Chongqing Jiaotong University, Chongqing 4000742 Department of Physics, Nanjing Normal University, Nanjing 210097
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 IJPC =01– Y (4008), Y (4140), Y (4260), and Y (4360) can be uniformly described as tetraquark states [cq ][c q n 2S+ 1 LJ of 11 P 1 , 15 P 1 , 25 P 1 and 15 F 1 , 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.
收稿日期: 2015-06-16
出版日期: 2015-10-30
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2015, Vol. 32 
