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题名: Low-energy scattering of the (D*(D)over-bar*)(+/-) system and the resonancelike structure Z(c)(4025)
作者: Chen, Y;  Gong, M;  Lei, YH;  Li, N;  Liang, J;  Liu, C;  Liu, JL;  Liu, YF;  Liu, YB;  Liu, ZF;  Ma, JP;  Wang, ZL;  Zhang, JB
刊名: PHYSICAL REVIEW D
出版日期: 2015
卷号: 92, 期号:5, 页码:54507
学科分类: Astronomy & Astrophysics ;  Physics
DOI: http://dx.doi.org/10.1103/PhysRevD.92.054507
通讯作者: Liu, C (reprint author), Peking Univ, Sch Phys, Beijing 100871, Peoples R China.
文章类型: Article
英文摘要: In this paper, low-energy scattering of the (D*(D) over bar*)(+/-) meson system is studied within Luscher's finite-size formalism using N-f = 2 twisted-mass gauge field configurations. With three different pion mass values, the s-wave threshold scattering parameters-namely the scattering length a(0) and the effective range r(0)-are extracted in the J(PC) = 1(+-) channel. Our results indicate that, in this particular channel, the interaction between the two vector charmed mesons is weakly repulsive in nature and hence it does not support the possibility of a shallow bound state for the two mesons, at least for the pion mass values being studied. However, these results might suffer from undetermined systematic errors due to low-lying states ignored in this exploratory study. Still, it provides some useful information on the nature of the newly discovered resonance-like structure Z(c)(4025) observed in various experiments.
类目[WOS]: Astronomy & Astrophysics ;  Physics, Particles & Fields
关键词[WOS]: HIDDEN CHARM ;  MOLECULE ;  LATTICE ;  MATRIX ;  STATES
收录类别: SCI
项目资助者: National Science Foundation of China (NSFC) [11335001, 11275169, 11405178, 11105153] ;  DFG ;  NSFC [11261130311] ;  National Basic Research Program of China (973 Program) [2015CB856700] ;  Youth Innovation Promotion Association of CAS [2013013, 2011013]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/20855
Appears in Collections:理论物理所2015年知识产出_期刊论文

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Recommended Citation:
Chen, Y,Gong, M,Lei, YH,et al. Low-energy scattering of the (D*(D)over-bar*)(+/-) system and the resonancelike structure Z(c)(4025)[J]. PHYSICAL REVIEW D,2015,92(5):54507.
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