title: Predictions of charged charmoniumlike structures with hidden-charm and open-strange channels.
abstract: We propose the initial single chiral particle emission mechanism, with which the hidden-charm dikaon decays of higher charmonia and charmoniumlike states are studied. Calculating the distributions of differential decay width, we obtain the line shape of the J/ψK(+) invariant mass spectrum of ψ(i)→J/ψK(+)K(-), where ψ(i)=ψ(4415), Y(4660), and ψ(4790). Our numerical results show that there exist enhancement structures with both hidden-charm and open-strange channels, which are near the D̄(s)(*)/D(*)D̄(s) and D(*)D̄(s)(*)/D̄(*)D(s)(*) thresholds. These charged charmoniumlike structures predicted in this Letter can be accessible in future experiments, especially BESIII, BelleII, and SuperB.
authors.affiliation: Research Center for Hadron and CSR Physics, Lanzhou University and Institute of Modern Physics of CAS, Lanzhou 730000, China and Nuclear Theory Group, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
authors.forename: Dian-Yong
authors.initials: DY
authors.lastname: Chen
authors.affiliation: Research Center for Hadron and CSR Physics, Lanzhou University and Institute of Modern Physics of CAS, Lanzhou 730000, China and School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China.
authors.forename: Xiang
authors.initials: X
authors.lastname: Liu
authors.affiliation: Tokyo Kasei University, 1-18-1 Kaga, Itabashi, Tokyo 173-8602, Japan.
authors.forename: Takayuki
authors.initials: T
authors.lastname: Matsuki