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Weak decays of stable open-bottom tetraquark by SU(3) symmetry analysis

文献类型：期刊论文

作者Xing, Ye2; Yu, Fu-Sheng1,3,6; Zhu, Ruilin4,5
刊名EUROPEAN PHYSICAL JOURNAL C
出版日期2019-04-30
卷号79期号:5页码:49
ISSN号1434-6044
DOI10.1140/epjc/s10052-019-6882-5
通讯作者Xing, Ye(xingye_guang@sjtu.edu.cn)
英文摘要The exotic state X(5568) which was observed by D0 Collaboration is very likely to be a tetraquark state with four different valence quark flavors, though the existence was not confirmed by other collaborations. The possibility of such state still generates lots of interests in theory. In the paper, we will study the properties of the state under the SU(3) flavor symmetry. The four quark states with a heavy bottom quark and three light quarks(anti-quark) can form 3, 6 and 15 representations. The weak decays can be dominant and should be discussed carefully while these states are stable against the strong and electromagnetic interactions. Therefor we will study the multi-body semileptonic and nonleptonic weak decays systematically. With the help of SU(3) flavor symmetry, we can give the Hamiltonian in the hadronic level, then obtain the parameterized irreducible amplitudes and the relations of different channels. At the end of the article, we collect some Cabibbo allowed two-body and three-body weak decay channels which can be used to reconstruct Xb6 states at the branching fraction up to be 10(-5).
WOS关键词HEAVY TETRAQUARKS ; STATES
资助项目National Natural Science Foundation of China[11575110] ; National Natural Science Foundation of China[11655002] ; National Natural Science Foundation of China[11705092] ; National Natural Science Foundation of China[U1732101] ; Natural Science Foundation of Shanghai[15DZ2272100] ; Natural Science Foundation of Shanghai[15ZR1423100] ; Natural Science Foundation of Jiangsu[BK20171471] ; Natural Science Foundation of Gansu[18JR3RA265] ; Young Thousand Talents Plan ; Key Laboratory for Particle Physics, Astrophysics and Cosmology, Ministry of Education
WOS研究方向Physics
语种英语
出版者SPRINGER
WOS记录号WOS:000466407600003
资助机构National Natural Science Foundation of China ; Natural Science Foundation of Shanghai ; Natural Science Foundation of Jiangsu ; Natural Science Foundation of Gansu ; Young Thousand Talents Plan ; Key Laboratory for Particle Physics, Astrophysics and Cosmology, Ministry of Education
源URL[http://119.78.100.186/handle/113462/133049]  
专题中国科学院近代物理研究所
通讯作者Xing, Ye
作者单位1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China
2.Shanghai Jiao Tong Univ, Sch Phys & Astron, MOE Key Lab Particle Phys, Shanghai Key Lab Particle Phys & Cosmol,INPAC, Shanghai 200240, Peoples R China
3.Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Gansu, Peoples R China
4.Nanjing Normal Univ, Inst Theoret Phys, Nanjing 210023, Jiangsu, Peoples R China
5.Nanjing Normal Univ, Dept Phys, Nanjing 210023, Jiangsu, Peoples R China
6.Lanzhou Univ, Res Ctr Hadron & CSR Phys, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式
GB/T 7714		 Xing, Ye,Yu, Fu-Sheng,Zhu, Ruilin. Weak decays of stable open-bottom tetraquark by SU(3) symmetry analysis[J]. EUROPEAN PHYSICAL JOURNAL C,2019,79(5):49.
APA Xing, Ye,Yu, Fu-Sheng,&Zhu, Ruilin.(2019).Weak decays of stable open-bottom tetraquark by SU(3) symmetry analysis.EUROPEAN PHYSICAL JOURNAL C,79(5),49.
MLA Xing, Ye,et al."Weak decays of stable open-bottom tetraquark by SU(3) symmetry analysis".EUROPEAN PHYSICAL JOURNAL C 79.5(2019):49.

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来源：近代物理研究所

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