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题名: Investigations on the charmless decays of Y(4260)
作者: Li, G;  An, CS;  Li, PY;  Liu, D;  Zhang, X;  Zhou, Z
刊名: CHINESE PHYSICS C
出版日期: 2015
卷号: 39, 期号:6, 页码:63102
关键词: intermediate meson loop ;  exotic states
学科分类: Physics
DOI: http://dx.doi.org/10.1088/1674-1137/39/6/063102
通讯作者: Li, G (reprint author), Qufu Normal Univ, Dept Phys, Qufu 273165, Peoples R China.
文章类型: Article
英文摘要: Apart from the charmful decay channels of Y(4260), the charmless decay channels of Y(4260) also provide us a good platform to study the nature and the decay mechanism of Y(4260). In this paper, we propose to probe the structure of Y(4260) through the charmless decays Y(4260) -> VP via intermediate D-1(D) over bar +c.c. meson loops, where V and P stand for light vector and pseudoscalar mesons, respectively. Under the molecule ansatz of Y(4260), the predicted total branching ratio BRVP for all Y(4260) -> VP processes are about (0.34(-0.23)(+0.32t)% to (0.75-(+0.72)(0.52))% with the cutoff parameter alpha=2-3. Numerical results show that the intermediate D-1<(D)$over bar>+c.c. meson loops may be a possible transition mechanism in the Y(4260) -> VP decays. These predicted branching ratios are the same order to that of Y(4260) -> Z(c)(+) (3900)pi(-), which may be an evidence of D1D molecule and can be examined by the forthcoming BESIII data in the near future.
类目[WOS]: Physics, Nuclear ;  Physics, Particles & Fields
关键词[WOS]: HEAVY QUARKONIA ;  OZI RULE ;  CHARMONIUM DECAYS ;  RADIATIVE DECAYS ;  MESONS ;  STATE ;  EXPLANATION ;  TRANSITIONS ;  RESONANCES ;  VIOLATION
收录类别: SCI
项目资助者: National Natural Science Foundation of China [11275113, 11205164]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/20983
Appears in Collections:理论物理所2015年知识产出_期刊论文

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Recommended Citation:
Li, G,An, CS,Li, PY,et al. Investigations on the charmless decays of Y(4260)[J]. CHINESE PHYSICS C,2015,39(6):63102.
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