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Strong two-body decays of the S-wave Ds+Ds- molecule state

文献类型：期刊论文

作者Chen, Dian-Yong1,2,3,4; Xiao, Cheng-Jian1,5
刊名NUCLEAR PHYSICS A
出版日期2016-03-01
卷号947页码:26-37
关键词Decay behavior Ds+Ds- molecule state X(3915)
ISSN号0375-9474
DOI10.1016/j.nuclphysa.2015.12.003
英文摘要The decay behaviors of the Ds+Ds- molecule state have been studied in an effective Lagrangian approach. We find that the Ds+Ds- molecule state dominantly decays into D (D) over bar and eta c eta. The total and partial widths are strongly dependent on the model parameter, however, the ratio of the partial widths for eta c eta and D (D) over bar is relatively stable and predicted to be about 0.17 similar to 0.22. In addition, our evaluation shows that the partial width for the Ds+Ds- molecule to J/psi omega is too small to be observed, thus the charmonium-like state X(3915) should not be a Ds+Ds- molecule state. (C) 2015 Elsevier B.V. All rights reserved.
WOS关键词COMPOSITE-PARTICLES ; VECTOR ; MESON ; OMEGA ; VMD ; RHO
资助项目National Natural Science Foundation of China[11375240]
WOS研究方向Physics
语种英语
WOS记录号WOS:000370895800003
出版者ELSEVIER SCIENCE BV
资助机构National Natural Science Foundation of China
源URL[http://119.78.100.186/handle/113462/41891]  
专题中国科学院近代物理研究所
通讯作者Chen, Dian-Yong
作者单位1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
2.Chinese Acad Sci, Inst Modern Phys, Res Ctr Hadron & CSR Phys, Lanzhou 730000, Peoples R China
3.Lanzhou Univ, Lanzhou 730000, Peoples R China
4.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Dian-Yong,Xiao, Cheng-Jian. Strong two-body decays of the S-wave Ds+Ds- molecule state[J]. NUCLEAR PHYSICS A,2016,947:26-37.
APA Chen, Dian-Yong,&Xiao, Cheng-Jian.(2016).Strong two-body decays of the S-wave Ds+Ds- molecule state.NUCLEAR PHYSICS A,947,26-37.
MLA Chen, Dian-Yong,et al."Strong two-body decays of the S-wave Ds+Ds- molecule state".NUCLEAR PHYSICS A 947(2016):26-37.

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来源：近代物理研究所

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