Knowledge Management System of Institute of Theoretical Physics, CAS
Chen, Y; Gong, M; Lei, YH; Li, N; Liang, J; Liu, C; Liu, H; Liu, JL; Liu, L; Liu, YF; Liu, YB; Liu, Z; Ma, JP; Wang, ZL; Yang, YB; Zhang, JB; Liu, C (reprint author), Peking Univ, Sch Phys, Beijing 100871, Peoples R China. | |
Low-energy scattering of the (D(D)over-bar*)(+/-) system and the resonance-like structure Z(c)(3900) | |
发表期刊 | PHYSICAL REVIEW D |
语种 | 英语 |
关键词 | Quantum-field Theories Finite-volume Particle States Lattice Dependence Spectrum Matrix |
摘要 | In this exploratory lattice study, low-energy scattering of the (DD*)(+/-) meson system is analyzed using lattice QCD with N-f = 2 twisted mass fermion configurations with three pion mass values. The calculation is performed within single-channel Luscher's finite-size formalism. The threshold scattering parameters, namely the scattering length a(0) and the effective range r(0), for the s-wave scattering in J(P) = 1(+) channel are extracted. For the cases in our study, the interaction between the two charmed mesons is weakly repulsive. Our lattice results therefore do not support the possibility of a shallow bound state for the two mesons for the pion mass values we studied. This calculation provides some useful information on the nature of the newly discovered resonance-like structure Z(c)(3900) by various experimental groups. |
2014 | |
ISSN | 1550-7998 |
卷号 | 89期号:9页码:94506 |
学科领域 | Physics |
DOI | 10.1103/PhysRevD.89.094506 |
收录类别 | SCI |
项目资助者 | National Science Foundation of China (NSFC) [11335001, 11275169, 11075167, 11105153]; DFG; NSFC [11261130311] ; National Science Foundation of China (NSFC) [11335001, 11275169, 11075167, 11105153]; DFG; NSFC [11261130311] ; National Science Foundation of China (NSFC) [11335001, 11275169, 11075167, 11105153]; DFG; NSFC [11261130311] ; National Science Foundation of China (NSFC) [11335001, 11275169, 11075167, 11105153]; DFG; NSFC [11261130311] |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.itp.ac.cn/handle/311006/15758 |
专题 | SCI期刊论文 |
通讯作者 | Liu, C (reprint author), Peking Univ, Sch Phys, Beijing 100871, Peoples R China. |
推荐引用方式 GB/T 7714 | Chen, Y,Gong, M,Lei, YH,et al. Low-energy scattering of the (D(D)over-bar*)(+/-) system and the resonance-like structure Z(c)(3900)[J]. PHYSICAL REVIEW D,2014,89(9):94506. |
APA | Chen, Y.,Gong, M.,Lei, YH.,Li, N.,Liang, J.,...&Liu, C .(2014).Low-energy scattering of the (D(D)over-bar*)(+/-) system and the resonance-like structure Z(c)(3900).PHYSICAL REVIEW D,89(9),94506. |
MLA | Chen, Y,et al."Low-energy scattering of the (D(D)over-bar*)(+/-) system and the resonance-like structure Z(c)(3900)".PHYSICAL REVIEW D 89.9(2014):94506. |
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