Low-energy D*(+)(D)over-bar(1)(0) scattering and the resonancelike structure Z(+)(4430)
文献类型：期刊论文
| 作者 | Meng, Guo-Zhan; Gong, Ming; Chen, Ying; He, Song ; Li, Gang; Liu, Chuan; Liu, Yu-Bin; Ma, Jian-Ping; Meng, Xiang-Fei; Niu, Zhi-Yuan
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| 刊名 | PHYSICAL REVIEW D
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| 出版日期 | 2009 |
| 卷号 | 80期号:3页码:- |
| 关键词 | Quantum-field Theories Anisotropic Lattices Volume Dependence Particle States Spectrum Matrix |
| ISSN号 | 1550-7998 |
| 英文摘要 | Low-energy scattering of D*(+) and (D) over bar (0)(1) meson are studied using quenched lattice QCD with improved lattice actions on anisotropic lattices. The calculation is performed within Luscher's finite-size formalism, which establishes the relation between the scattering phase in the infinite volume and the exact energy level in the finite volume. The threshold scattering parameters, namely, the scattering length a(0) and the effective range r(0), for the s-wave scattering in J(P) = 0(-) channel are extracted. After the chiral and continuum extrapolations, we obtain: a(0) = 2.52(47) fm and r(0) = 0.7(1) fm where the errors are purely statistical. Based on these results, we discuss the possibility of a shallow bound state for the two charmed mesons within the nonrelativistic potential scattering model. It is argued that, albeit the interaction between the two charmed mesons being attractive, it is unlikely that they can form a shallow bound state in this channel. This calculation provides some useful information on the nature of the newly discovered resonancelike structure Z(+)(4430) by the Belle Collaboration. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000269641100060 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5269]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Meng, GZ , Peking Univ, Sch Phys, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Meng, Guo-Zhan,Gong, Ming,Chen, Ying,et al. Low-energy D*(+)(D)over-bar(1)(0) scattering and the resonancelike structure Z(+)(4430)[J]. PHYSICAL REVIEW D,2009,80(3):-. |
| APA | Meng, Guo-Zhan.,Gong, Ming.,Chen, Ying.,He, Song.,Li, Gang.,...&Meng, GZ , Peking Univ, Sch Phys, Beijing 100871, Peoples R China.(2009).Low-energy D*(+)(D)over-bar(1)(0) scattering and the resonancelike structure Z(+)(4430).PHYSICAL REVIEW D,80(3),-. |
| MLA | Meng, Guo-Zhan,et al."Low-energy D*(+)(D)over-bar(1)(0) scattering and the resonancelike structure Z(+)(4430)".PHYSICAL REVIEW D 80.3(2009):-. |
入库方式： OAI收割
来源：理论物理研究所
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