Search for e+e−→KS0KS0hc

Abstract

Using e⁺e⁻ collision data at 13 center-of-mass energies ranging from 4.600 to 4.951 GeV collected with the BESIII detector, we conduct the first search for the e⁺e⁻ → $K_S^0{K}_S^0{h}_c$ process and investigate the resonance structures in the cross section line shape. No significant signal is observed, and the upper limits of the Born cross sections at each center-of-mass energy are presented. The ratio $\frac{\sigma \left(e^{+}{e}^{-}\to K_S^0{K}_S^0{h}_c\right)}{\sigma \left(e^{+}{e}^{-}\to K_S^0{K}_S^{0}J/\psi \right)}$ is determined to be 0.15 ± 0.22. This result indicates that if vector states exist in this energy region, their decay into h_c is significantly suppressed compared to decays into J/ψ.