Analysis of the decay [formula omitted] with the light-cone QCD sum rules

Abstract

In this work, we tentatively assign the Y(4500) as the [uc]A˜[uc‾]V+[uc]V[uc‾]A˜+[dc]A˜[dc‾]V+[dc]V[dc‾]A˜ tetraquark state with the quantum numbers JPC=1−−, and study the three-body strong decay Y(4500)→D⁎−D⁎0π+ with the light-cone QCD sum rules. It is the first time to use the light-cone QCD sum rules to calculate the four-hadron coupling constants, the approach can be extended to study other three-body strong decays directly and diagnose the X, Y and Z states.