A coupled-channel lattice study of the resonance-like structure Z(c)(3900)

doi:10.1088/1674-1137/43/10/103103

	A coupled-channel lattice study of the resonance-like structure Z(c)(3900)
	Chen, Ting 1; Chen, Ying 2,3; Gong, Ming 2,3; Liu, Chuan 1,4,5; Liu, Liuming6,7 ; Liu, Yu-Bin 8; Liu, Zhaofeng 2,3; Ma, Jian-Ping 9; Werner, Markus 10,11; Zhang, Jian-Bo 12
刊名	CHINESE PHYSICS C
	2019-10-01
卷号	43 期号:10 页码:14
关键词	Luescher formalism lattice QCD computation exotic mesons
ISSN号	1674-1137
DOI	10.1088/1674-1137/43/10/103103
通讯作者	Liu, Chuan(liuchuan@pku.edu.cn)
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.
资助项目	Ministry of Science and Technology of China (MSTC) under 973 project Systematic studies on light hadron spectroscopy[2015CB856702] ; NSFC[CRC 110] ; NSFC[11621131001] ; DFG[TRR 110] ; National Science Foundation of China (NSFC)[11775229] ; National Science Foundation of China (NSFC)[11875169] ; Youth Innovation Promotion Association of CAS[2015013] ; Key Research Program of the Chinese Academy of Sciences[XDPB09]
WOS关键词	QUANTUM-FIELD THEORIES ; VOLUME DEPENDENCE ; ENERGY-SPECTRUM ; MATRIX ; STATES
WOS研究方向	Physics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000487562700004
资助机构	Ministry of Science and Technology of China (MSTC) under 973 project Systematic studies on light hadron spectroscopy ; NSFC ; DFG ; National Science Foundation of China (NSFC) ; Youth Innovation Promotion Association of CAS ; Key Research Program of the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/132682]
专题	中国科学院近代物理研究所
通讯作者	Liu, Chuan
作者单位	1.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
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):14.
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),14.
MLA	Chen, Ting,et al."A coupled-channel lattice study of the resonance-like structure Z(c)(3900)".CHINESE PHYSICS C 43.10(2019):14.