Can X(5568) be a tetraquark state?

doi:http://dx.doi.org/10.1088/1674-1137/40/9/093101

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	Can X(5568) be a tetraquark state?
	Wang, W; Zhu, RL
刊名	CHINESE PHYSICS C
	2016
卷号	40 期号:9 页码:93101
关键词	exotic state MESONS diquark MODEL 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
资助机构	National Natural Science Foundation of China [11575110] ; Natural Science Foundation of Shanghai [15DZ2272100, 15ZR1423100] ; China Postdoctoral Science Foundation ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF111CJ1] ; Scientific Research Foundation for Returned Overseas Chinese Scholars, State Education Ministry
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/23049]
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	Shanghai Jiao Tong Univ, Dept Phys & Astron, Shanghai Key Lab Particle Phys & Cosmol, INPAC, Shanghai 200240, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Wang, W,Zhu, RL. Can X(5568) be a tetraquark state?[J]. CHINESE PHYSICS C,2016,40(9):93101.
APA	Wang, W,&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.