A coupled-channel lattice study of the resonance-like structure Z(c)(3900)
文献类型：期刊论文
| 作者 | Chen, Ting; Chen, Ying2,3; Gong, Ming2,3; Liu, Chuan1,12; Liu, Liuming10,11; Liu, Yu-Bin; Liu, Zhaofeng2,3; Ma, Jian-Ping ; Werner, Markus6,7; Zhang, Jian-Bo
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| 刊名 | CHINESE PHYSICS C
 |
| 出版日期 | 2019 |
| 卷号 | 43期号:10页码:103103 |
| 关键词 | QUANTUM-FIELD THEORIES VOLUME DEPENDENCE ENERGY-SPECTRUM MATRIX STATES |
| ISSN号 | 1674-1137 |
| DOI | 10.1088/1674-1137/43/10/103103 |
| 英文摘要 | In this exploratory study, near-threshold scattering of D and (D) over bar* meson is investigated using lattice QCD with N-f = 2+1+1 twisted mass fermion configurations. The calculation is performed in the coupled-channel Luscher finite-size formalism. The study focuses on the channel with I-G (J(PC)) = 1(+)(1(+-)) where the resonance-like structure Z(c)(3900) was discovered. We first identify the two most relevant channels and the lattice study is performed in the two-channel scattering model. Combined with the two-channel Ross-Shaw theory, scattering parameters are extracted from the energy levels by solving the generalized eigenvalue problem. Our results for the scattering length parameters suggest that for the particular lattice parameters that we studied, the best fit parameters do not correspond to the peak in the elastic scattering cross-section near the threshold. Furthermore, in the zero-range Ross-Shaw theory, the scenario of a narrow resonance close to the threshold is disfavored beyond the 3 sigma level. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/26929]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 3.Peking Univ, Sch Phys, Beijing 100871, Peoples R China 4.Zhejiang Univ, Dept Phys, Hangzhou 311027, Zhejiang, Peoples R China 5.Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany 6.Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany 7.Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China 8.Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China 9.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 10.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Ting,Chen, Ying,Gong, Ming,et al. A coupled-channel lattice study of the resonance-like structure Z(c)(3900)[J]. CHINESE PHYSICS C,2019,43(10):103103. |
| APA | Chen, Ting.,Chen, Ying.,Gong, Ming.,Liu, Chuan.,Liu, Liuming.,...&Zhang, Jian-Bo.(2019).A coupled-channel lattice study of the resonance-like structure Z(c)(3900).CHINESE PHYSICS C,43(10),103103. |
| MLA | Chen, Ting,et al."A coupled-channel lattice study of the resonance-like structure Z(c)(3900)".CHINESE PHYSICS C 43.10(2019):103103. |
入库方式： OAI收割
来源：理论物理研究所
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