The nature of near-threshold XYZ states

doi:10.7566/JPSCP.10.010017

	The nature of near-threshold XYZ states
	Cleven, M 1; Guo, FK ; Hanhart, C 2,4; Wang, Q 2,4; Zhao, Q 1
	2016
会议日期	MAY 25-28, 2015
会议地点	Osaka Univ, Icho Kaikan Suita Campus, Osaka, JAPAN
DOI	10.7566/JPSCP.10.010017
页码	UNSP 010017
英文摘要	We demonstrate that the recently observed X, Y, Z states cannot be purely from kinematic effect. Especially the narrow near-threshold structures in elastic channels call for nearby poles of the S - matrix which can be used to distinguish them from the normal kinematic cusp effect. In addition, it is also discussed how spectra can be used to distinguish different scenarios proposed for the structure of those poles, such as hadro-quarkonia, tetraquarks and hadronic molecules. The basic tool employed is heavy quark spin symmetry.
源文献作者	Osaka Univ, Icho Kaikan Suita Campus
会议录	PROCEEDINGS OF THE 10TH INTERNATIONAL WORKSHOP ON THE PHYSICS OF EXCITED NUCLEONS (NSTAR2015)
会议录出版者	PHYSICAL SOCIETY JAPAN
会议录出版地	TOKYO
语种	英语
URL标识	查看原文
ISBN号	978-4-89027-114-6
WOS研究方向	Physics
内容类型	会议论文
源URL	[http://ir.itp.ac.cn/handle/311006/23577]
专题	SCI会议论文
作者单位	1.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Theoret Phys Ctr Sci Facil, Beijing 100049, Peoples R China 4.Forschungszentrum Julich, Inst Kernphys, D-52425 Julich, Germany 5.Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany 6.Forschungszentrum Julich, Inst Adv Simulat, D-52425 Julich, Germany 7.Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany
推荐引用方式 GB/T 7714	Cleven, M,Guo, FK,Hanhart, C,et al. The nature of near-threshold XYZ states[C]. 见:. Osaka Univ, Icho Kaikan Suita Campus, Osaka, JAPAN. MAY 25-28, 2015.