Hidden-charm decays of Y(4390) in a hadronic molecular scenario

作者：Chen, Dian-Yong^*; Xiao, Cheng-Jian; He, Jun

来源：PHYSICAL REVIEW D, 2017, 96(5): 054017.

DOI：10.1103/PhysRevD.96.054017

• TOTAL CROSS-SECTION
• E(+)E(-) ANNIHILATION
• MASS ENERGIES
• Y(4260)
• E&E

In the present work, the hidden-charm decays of Y(4390) are investigated in a D*(D) over bar1 +1 H.c.molecular scenario. We find in this frame the observation of the Y(4390) in the e(+)e(-) -> pi(+)pi(-) h(c) process and the absence of this state in the e(+)e(-) -> pi(+)pi(-) J/psi process are very natural. The partial width of Y(4390) -> pi(+)pi(-) hc could reach up to 1.26 MeV, which is large enough to be observed. The result also indicates that the partial widths of Y(439

• 出版日期2017-9-18
• 单位中国科学院大学; 中国科学院近代物理研究所; 东南大学; 南京师范大学