Investigations on the charmless decays of Y(4260)

	Investigations on the charmless decays of Y(4260)
	Li, G; An CS(安春生); An, CS; Li, PY; Liu, D; Zhang, X; Zhou, Z
刊名	CHINESE PHYSICS C
	2015
卷号	39 期号:6 页码:63102
关键词	intermediate meson loop exotic states
通讯作者	安春生
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.
学科主题	Physics
类目[WOS]	Physics, Nuclear ; Physics, Particles & Fields
收录类别	SCI
WOS记录号	WOS:000355571700002
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/228467]
专题	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Li, G,An CS,An, CS,et al. Investigations on the charmless decays of Y(4260)[J]. CHINESE PHYSICS C,2015,39(6):63102.
APA	Li, G.,安春生.,An, CS.,Li, PY.,Liu, D.,...&Zhou, Z.(2015).Investigations on the charmless decays of Y(4260).CHINESE PHYSICS C,39(6),63102.
MLA	Li, G,et al."Investigations on the charmless decays of Y(4260)".CHINESE PHYSICS C 39.6(2015):63102.