Measurement of Branching Fractions and Charge Asymmetries for Two-Body B Meson Decays with Charmonium

TL;DR

This paper measures the branching fractions and charge asymmetries of B meson decays into two-body final states with charmonium, providing insights into CP violation and decay dynamics using data from the Belle detector.

Contribution

It presents the first measurements of these specific decay modes and asymmetries using a large data sample collected at the Upsilon(4S) resonance.

Findings

Measured branching fractions for B decays to charmonium states.

Determined charge asymmetries in these decay channels.

Provides data supporting CP violation studies.

Abstract

We report branching fractions and charge asymmetries for exclusive decays of charged and neutral B mesons to two-body final states containing a charmonium meson, J/psi or psi(2S). This result is based on a 29.4 fb^{-1} data sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric e+e- collider.