X(4140), X(4274), X(4500), and X(4700) in the relativized quark model
Lv QF(吕齐放); Dong YB(董宇兵); Lu, QF; Dong, YB
刊名PHYSICAL REVIEW D
2016
卷号94期号:7
DOI10.1103/PhysRevD.94.074007
通讯作者吕齐放 ; 董宇兵
文章类型Article
英文摘要We investigate the masses of cs (c) over bar(s) over bar tetraquark states in a diquark-antidiquark picture employing the relativized quark model proposed by Godfrey and Isgur. Only the antitriplet diquark states in color space are calculated. The diquark masses are obtained with the relativized potential first, and then the diquark and antidiquark are treated as the usual antiquark and quark, respectively, and the masses of the tetraquark states are obtained by solving the Schrodinger equation with the relativized potential between the diquark and antidiquark. The theoretical uncertainties induced by screening effects are also taken into account. It is found that the resonance of X(4140) can be regarded as the cs (c) over bar(s) over bar tetraquark ground states, and the X(4700) can be assigned as the 2S excited tetraquark state. When the internal excited diquarks are taken into account, the resonance of X(4500) can be explained as the tetraquark composed of one 2S scalar diquark and one scalar antidiquark. In our approach, the X(4274) cannot be explained as a tetraquark state; however, it can be a good candidate of the conventional chi c1(3(3)P(1)) state. In addition, other charmoniumlike states chi(c0)(3915), X(4350), X(4630), and X(4660), as the cs (c) over bar(s) over bar tetraquark states, are also discussed.
关键词[WOS]HEAVY TETRAQUARKS ; HIDDEN-CHARM ; MASS-SPECTRA ; J/PSI-PHI ; DECAYS ; STATES ; CHROMODYNAMICS ; PENTAQUARK ; Y(4140) ; BARYONS
语种英语
WOS记录号WOS:000384608100004
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被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260662
专题中国科学院高能物理研究所_理论物理室_期刊论文
作者单位中国科学院高能物理研究所
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Lv QF,Dong YB,Lu, QF,et al. X(4140), X(4274), X(4500), and X(4700) in the relativized quark model[J]. PHYSICAL REVIEW D,2016,94(7).
APA 吕齐放,董宇兵,Lu, QF,&Dong, YB.(2016).X(4140), X(4274), X(4500), and X(4700) in the relativized quark model.PHYSICAL REVIEW D,94(7).
MLA 吕齐放,et al."X(4140), X(4274), X(4500), and X(4700) in the relativized quark model".PHYSICAL REVIEW D 94.7(2016).
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