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DOI	10.1016/j.scib.2021.06.026
	Implications of the Zcs(3985) and Zcs(4000) as two different states
	Meng L.; Wang B.; Wang G.-J.; Zhu S.-L.
发表日期	2021
ISSN	20959273
英文摘要	Recently, the hidden charm tetraquark states Zcs(3985) and Zcs(4000) with strangeness were observed by the BESIII and LHCb collaborations, respectively, which are great breakthroughs for exploring exotic QCD structures. The first and foremost question is whether they are the same state. In this work, we explore the implications of the narrower state Zcs(3985) in BESIII and the wider one Zcs(4000) in LHCb as two different states. Within a solvable nonrelativistic effective field theory, we include the possible violations of heavy quark spin symmetry and SU(3) flavor symmetry in a comprehensive approach. If Zcs(3985) and Zcs(4000) are two different states, our results show that Zcs(4000)/Zcs(3985) is the pure (\|D‾s∗D〉+/-\|D‾sD∗〉)/2 state, and the SU(3) flavor partner of Zc(3900) is Zcs(4000) rather than the Zcs(3985). Another two important consequences are the existence of a tensor D‾s∗D∗ resonance with mass about 4126 MeV and width 13 MeV, and the suppression of the decay mode Zcs(3985)→J/ψK. The two consequences can be tested in experiments and distinguish the two-state interpretation from the one-state scheme. © 2021 Science China Press
关键词	Heavy quark spin symmetry Strangness Tetraquark Zcs states
英文关键词	Bosons; Charm+; Cs$++$; Effective field theory; Heavy quark spin symmetry; Heavy-quark; Nonrelativistic; Spin symmetry; Strangness; Tetraquarks; Zcs state; Spin dynamics
语种	英语
来源期刊	Science Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207525
作者单位	Institut für Theoretische Physik II, Ruhr-Universität Bochum, Bochum, D-44780, Germany; School of Physical Science and Technology, Hebei University, Baoding, 071002, China; Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan; School of Physics and Center of High Energy Physics, Peking University, Beijing, 100871, China
推荐引用方式 GB/T 7714	Meng L.,Wang B.,Wang G.-J.,et al. Implications of the Zcs(3985) and Zcs(4000) as two different states[J],2021.
APA	Meng L.,Wang B.,Wang G.-J.,&Zhu S.-L..(2021).Implications of the Zcs(3985) and Zcs(4000) as two different states.Science Bulletin.
MLA	Meng L.,et al."Implications of the Zcs(3985) and Zcs(4000) as two different states".Science Bulletin (2021).