Studies on the $B\to \kappa \bar{\kappa }$ decays in the perturbative QCD approach

Liangliang Su, Zewen Jiang, Xin Liu

The $B\to \kappa \bar{\kappa }$ decays are investigated for the first time in the perturbative QCD formalism based on the $k_T$ factorization theorem, where the light scalar $\kappa$ is assumed as…