Study of Bc->KK decay with perturbative QCD approach

TL;DR

This paper uses perturbative QCD to predict the decay rate of Bc->KK, finding it extremely small and likely unmeasurable at current collider experiments.

Contribution

It provides a theoretical prediction of the Bc->KK decay branching ratio using perturbative QCD, a decay mode not previously well-studied.

Findings

Branching ratio BR(Bc->KK) ~ 10^-7

Decay likely unmeasurable at LHC

Supports perturbative QCD applicability in rare Bc decays

Abstract

In the framework of the perturbative QCD approach, we study the charmless pure weak annihilation Bc->KK decay and find that the branching ratio BR(Bc->KK) O(10^-7). This prediction is so tiny that the Bc->KK decay might be unmeasurable at the Large Hadron Collider.