ITP OpenIR  > SCI期刊论文
Chen, Ting; Chen, Ying1,2; Gong, Ming1,2; Liu, Chuan3,4; Liu, Liuming5,6; Liu, Yu-Bin; Liu, Zhaofeng1,2; Ma, Jian-Ping; Werner, Markus9,10; Zhang, Jian-Bo
A coupled-channel lattice study of the resonance-like structure Z(c)(3900)
Source PublicationCHINESE PHYSICS C
Language英语
KeywordQUANTUM-FIELD THEORIES VOLUME DEPENDENCE ENERGY-SPECTRUM MATRIX STATES
AbstractIn 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.
2019
ISSN1674-1137
Volume43Issue:10Pages:103103
Cooperation Status国际
Subject AreaPhysics
MOST Discipline CataloguePhysics, Nuclear ; Physics, Particles & Fields
DOI10.1088/1674-1137/43/10/103103
Indexed BySCIE
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/26929
CollectionSCI期刊论文
Affiliation1.Peking Univ, Sch Phys, Beijing 100871, Peoples R China
2.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
3.Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China
4.Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China
5.Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China
6.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China
7.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
8.Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China
9.Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
10.Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany
11.Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany
12.Zhejiang Univ, Dept Phys, Hangzhou 311027, Zhejiang, Peoples R China
Recommended Citation
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.
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