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
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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 | |
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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10016.pdf(344KB) | 期刊论文 | 作者接受稿 | 限制开放 | CC BY-NC-SA | 请求全文 |
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