Feasibility of the experimental study of Ds*→ φπ decay

The current knowledge on the D-s* meson are very limited. Besides the dominant electromagnetic decays, the D-s* weak decays are legal and offer the valuable opportunities to explore the wanted D-s* meson. In this paper, the D-s* -> phi pi decay was studied with the factorization approach. It is found that the branching ratio B(D-s* -> phi pi) similar to O(10(-7)), which corresponds to several thousands of events at the e(+)e(-) collider experiments including STCF, SuperKEKB, CEPC and FCC-ee, and several millions of events at the hadron collider experiments, such as LHCb@HL-LHC. It is feasible to experimentally study the D-s* -> phi pi weak decay in the future, even considering the identification efficiency.

Automated summary

The current knowledge on the D-s* meson is limited, but the weak decays of D-s* offer valuable opportunities for exploration. In this paper, the D-s* -> phi pi decay was studied using the factorization approach. It was found that the decay is feasible to be experimentally studied in the future, even considering the identification efficiency.