Decoding the Riddle of Y(4260) and Z(c)(3900)

	Decoding the Riddle of Y(4260) and Z(c)(3900)
	Wang, Q; Hanhart, C; 赵强;Zhao, Q
刊名	PHYSICAL REVIEW LETTERS
	2013
卷号	111 期号:13 页码:132003
英文摘要	The observation of Z(c)(3900) by the BESIII Collaboration in the invariant mass spectrum of J/psi pi(+/-) in e(+)e(-) -> J/psi pi(+)pi(-) at the center of mass 4.260 GeV suggests the existence of a charged (D) over barD* + D (D) over bar* molecular state with I(J(P)) = 1(1(+)), which could be an isovector brother of the famous X(3872) and an analogue of Z(b)(10610) claimed by the Belle Collaboration. We demonstrate that this observation provides strong evidence that the mysterious Y(4260) is a (D) over barD(1)(2420) +D (D) over bar (1)(2420) molecular state. Especially, we show that the decay of this molecule naturally populates low momentum (D) over barD* pairs and leads unavoidably to a cusp at the (D) over barD* threshold. We discuss the signatures that distinguish such a (D) over barD* cusp from the presence of a true resonance.
学科主题	Physics
收录类别	SCI
WOS记录号	WOS:000325364300007
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/224647]
专题	高能物理研究所_理论物理室
推荐引用方式 GB/T 7714	Wang, Q,Hanhart, C,赵强；Zhao, Q. Decoding the Riddle of Y(4260) and Z(c)(3900)[J]. PHYSICAL REVIEW LETTERS,2013,111(13):132003.
APA	Wang, Q,Hanhart, C,&赵强；Zhao, Q.(2013).Decoding the Riddle of Y(4260) and Z(c)(3900).PHYSICAL REVIEW LETTERS,111(13),132003.
MLA	Wang, Q,et al."Decoding the Riddle of Y(4260) and Z(c)(3900)".PHYSICAL REVIEW LETTERS 111.13(2013):132003.