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Probing the nature of Y(4260) in the isospin violating process Y(4260) -> J/psi eta pi(0)
Wu, XG; Hanhart, C; Wu XG(吴小刚); 赵强;Wang, Q; Zhao, Q
2014
发表期刊PHYSICAL REVIEW D
卷号89期号:5页码:54038
摘要The isospin violation process Y(4260) -> J/psi eta pi(0) is studied assuming that Y(4260) is a D-1(D) over bar +c.c. hadronic molecule. In association with the production of the Z(c)(3900), which is treated as a D (D) over bar c.c. hadronic molecule, this process can help us distinguish the molecular nature of Y(4260) from other scenarios since the incomplete cancellation between the charged and neutral- meson loops, which are prominent in the molecular picture only, produces a peak in the e(+)e(-) -> Y(4260) -> J/psi eta pi(0) cross section at the D-1(D) over bar c.c. threshold and a very prominent peak in the J/psi eta pi(0) invariant mass spectrum in between the D (D) over bar + c.c. thresholds, the latter being much narrower than the corresponding one in the isospin conserving channel, i.e. J/psi pi(+)pi(-). The partial width of Y(4260) -> J/psi eta pi(0) is about 4 x 10(-4) times that of Y(4260) -> J/psi eta pi(0). The cross section of e(+)e(-) -> Y(4260) -> J/psi eta pi(0) at the D-1(D) over bar + c.c. threshold is about 0.05 pb, which is much larger than that produced by the nearby resonances. These features are the direct consequence of the assumed nature of these two states, especially for the Y(4260), which might be accessible at high- statistics experiments such as BESIII and LHCb.
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.89.054038
收录类别SCI
WOS记录号WOS:000334307900001
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被引频次:10[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/311005/225267
专题理论物理室
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Wu, XG,Hanhart, C,Wu XG,et al. Probing the nature of Y(4260) in the isospin violating process Y(4260) -> J/psi eta pi(0)[J]. PHYSICAL REVIEW D,2014,89(5):54038.
APA Wu, XG,Hanhart, C,吴小刚,赵强;Wang, Q,&Zhao, Q.(2014).Probing the nature of Y(4260) in the isospin violating process Y(4260) -> J/psi eta pi(0).PHYSICAL REVIEW D,89(5),54038.
MLA Wu, XG,et al."Probing the nature of Y(4260) in the isospin violating process Y(4260) -> J/psi eta pi(0)".PHYSICAL REVIEW D 89.5(2014):54038.
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