The $\hat{I}\yen (1S)$ $\to$ $B_c\ddot{I}$ decay with perturbative QCD approach

Abstract

With the potential prospects of the $\hat{I}\yen (1S)$ data samples at the running LHC and upcoming SuperKEKB, the $\hat{I}\yen (1S)$ $\to$ $B_c\ddot{I}$ weak decays are studied with the pQCD approach. It is found that (1) the lion's share of branching ratio comes from the longitudinal polarization helicity amplitudes; (2) branching ratio for the $\hat{I}\yen (1S)$ $\to$ $B_c\ddot{I}$ decay can reach up to $\mathcal{O}(10^{-9})$, which might be hopefully measurable.

14 pages, revtex