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

doi:10.1103/PhysRevLett.111.132003

IHEP OpenIR > 理论物理室

	Decoding the Riddle of Y(4260) and Z(c)(3900)
	Wang, Q; Hanhart, C; 赵强;Zhao, Q
	2013
发表期刊	PHYSICAL REVIEW LETTERS
卷号	111 期号:13 页码:132003
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.
学科领域	Physics
DOI	10.1103/PhysRevLett.111.132003
收录类别	SCI
WOS记录号	WOS:000325364300007
引用统计	被引频次：133[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ihep.ac.cn/handle/311005/224647
专题	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.

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