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

doi:10.1016/j.nuclphysa.2015.12.003

	Strong two-body decays of the S-wave Ds+Ds- molecule state
	Chen, Dian-Yong 1,2,3,4; Xiao, Cheng-Jian 1,5
刊名	NUCLEAR PHYSICS A
	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
DOI	10.1016/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.
资助项目	National Natural Science Foundation of China[11375240]
WOS关键词	COMPOSITE-PARTICLES ; VECTOR ; MESON ; OMEGA ; VMD ; RHO
WOS研究方向	Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000370895800003
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
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.