Mass spectra and wave functions of TQQ(Q)over-bar(Q)(over-bar) tetraquarks

doi:10.1103/PhysRevD.104.014018

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	Mass spectra and wave functions of TQQ(Q)over-bar(Q)(over-bar) tetraquarks
	Li, Qiang ; Chang, Chao-Hsi ; Wang, Guo-Li ; Wang, Tianhong 5
刊名	PHYSICAL REVIEW D
	2021
卷号	104 期号:1 页码:14018
关键词	HEAVY DIQUARK CHARMONIUM EQUATION
ISSN号	2470-0010
DOI	10.1103/PhysRevD.104.014018
英文摘要	The compact tetraquark states with fully heavy quark contents QQ (Q) over bar(Q) over bar are studied as the bound states of the diquark-antidiquark within the Bethe-Salpeter framework. The (anti)diquark masses and form factors used are the same as we calculated the doubly heavy baryons in a previous work. Under the instantaneous approximation, the three-dimensional (Bethe-)Salpeter equation of the tetraquarks is derived and solved numerically to obtain the corresponding mass spectra and wave functions of the tetraquarks with J(PC) = 0(++), 1(+-), and 2(++). Our results show that the three ground states of cc (c) over bar(c) over bar locate in the mass range of 6.4-6.5 GeV, and the bb (b) over bar(b) over bar states in mass range of 19.2-19.3 GeV. The obtained relativistic wave functions naturally include the mixing effects from the possible D (or G) partial waves, and then can be further used to do precise calculations of the tetraquark decays. Based on the obtained results, the LHCb's observation X(6900) is less likely to be the ground states of compact cc (c) over bar(c) over bar tetraquarks but might be the first or second excited states. In addition, a widely used propagatorlike form factor is also investigated and discussed.
学科主题	Astronomy & Astrophysics ; Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27392]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Northwestern Polytech Univ, Sch Phys Sci & Technol, Xian 710072, Peoples R China 2.Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 4.CCAST World Lab, POB 8730, Beijing 100190, Peoples R China 5.Hebei Univ, Dept Phys, Baoding 071002, Peoples R China 6.Harbin Inst Technol, Sch Phys, Harbin 150001, Peoples R China
推荐引用方式 GB/T 7714	Li, Qiang,Chang, Chao-Hsi,Wang, Guo-Li,et al. Mass spectra and wave functions of TQQ(Q)over-bar(Q)(over-bar) tetraquarks[J]. PHYSICAL REVIEW D,2021,104(1):14018.
APA	Li, Qiang,Chang, Chao-Hsi,Wang, Guo-Li,&Wang, Tianhong.(2021).Mass spectra and wave functions of TQQ(Q)over-bar(Q)(over-bar) tetraquarks.PHYSICAL REVIEW D,104(1),14018.
MLA	Li, Qiang,et al."Mass spectra and wave functions of TQQ(Q)over-bar(Q)(over-bar) tetraquarks".PHYSICAL REVIEW D 104.1(2021):14018.