Study of Bc -> BP,BV Decays with QCD Factorization

TL;DR

This paper analyzes Bc meson decays into pseudoscalar and vector mesons using QCD factorization, estimating branching ratios and identifying promising decay modes for detection at colliders.

Contribution

It provides a detailed calculation of Bc decay amplitudes including penguin contributions, highlighting the suppression of penguin effects and identifying key decay channels.

Findings

Penguin contributions are highly suppressed by CKM factors.

Bc -> Bs Pi and Bc -> Bs rho are promising decay modes for experimental detection.

Branching ratios are estimated at leading order using QCD factorization.

Abstract

The Bc -> BP,BV decays are studied with the QCD factorization approach (where P and V denote pseudoscalar and vector mesons, respectively). Considering the contributions of both current-current and penguin operators, the amplitudes of branching ratios are estimated at the leading approximation. We find that the contributions of the penguin operators are very small due to the serious suppression by the CKM elements. The most promising decay modes are Bc -> Bs Pi, Bs rho, which might be easily detected at hadron colliders.