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	Can X(5568) be a tetraquark state?
	Wang, W; Zhu, RL; Zhu, RL (reprint author), Shanghai Jiao Tong Univ, Dept Phys & Astron, Shanghai Key Lab Particle Phys & Cosmol, INPAC, Shanghai 200240, Peoples R China.
刊名	CHINESE PHYSICS C
	2016
卷号	40期号:9页码:93101
关键词	Exotic State Diquark Tetraquark
DOI	http://dx.doi.org/10.1088/1674-1137/40/9/093101
英文摘要	Very recently, the DO collaboration has reported the observation of a narrow structure, X(5568), in the decay process X(5568)-> B-s(0)pi(+/-) using the 10.4fb(-1) data of pp collision at root s = 1.96 TeV. This structure is of great interest since it is the first hadronic state with four different valence quark flavors, b, s, u, d. In this work, we investigate tetraquarks with four different quark flavors. Based on the diquark-antidiquark scheme, we study the spectroscopy of the tetraquarks with one heavy bottom/charm quark and three light quarks. We find that the lowest-lying S-wave state, a tetraquark with the flavor [su] [(b) over bar(d) over bar] and the spin-parity J(P) = 0(+), is about 150 MeV higher than the X(5568). Further detailed experimental and theoretical studies of the spectrum, production and decays of tetraquark states with four different flavors are vital to gain a better understanding of the nature and classification of hadron exotic states.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/21549]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Zhu, RL (reprint author), Shanghai Jiao Tong Univ, Dept Phys & Astron, Shanghai Key Lab Particle Phys & Cosmol, INPAC, Shanghai 200240, Peoples R China.
推荐引用方式 GB/T 7714	Wang, W,Zhu, RL,Zhu, RL . Can X(5568) be a tetraquark state?[J]. CHINESE PHYSICS C,2016,40(9):93101.
APA	Wang, W,Zhu, RL,&Zhu, RL .(2016).Can X(5568) be a tetraquark state?.CHINESE PHYSICS C,40(9),93101.
MLA	Wang, W,et al."Can X(5568) be a tetraquark state?".CHINESE PHYSICS C 40.9(2016):93101.

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