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题名: Can X(5568) be a tetraquark state?
作者: Wang, W ;  Zhu, RL
刊名: CHINESE PHYSICS C
出版日期: 2016
卷号: 40, 期号:9, 页码:93101
关键词: exotic state ;  diquark ;  tetraquark
学科分类: Physics
DOI: http://dx.doi.org/10.1088/1674-1137/40/9/093101
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.
文章类型: Article
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.
类目[WOS]: Physics, Nuclear ;  Physics, Particles & Fields
关键词[WOS]: MESONS ;  MODEL
收录类别: SCI
项目资助者: 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
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21549
Appears in Collections:理论物理所2016年知识产出_期刊论文

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Recommended Citation:
Wang, W,Zhu, RL. Can X(5568) be a tetraquark state?[J]. CHINESE PHYSICS C,2016,40(9):93101.
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