Study of Charmonium Production and Electroweak Penguins with BABAR

TL;DR

This paper presents measurements of charmonium production in B decays and continuum, along with branching ratios of B mesons into charmonium states, using data from the BABAR detector.

Contribution

It provides new experimental data on charmonium production and B decay branching ratios, including rare decay searches, expanding understanding of heavy quarkonium and B meson decays.

Findings

Measured inclusive charmonium production rates

Determined B meson decay branching ratios into charmonium

Set limits on rare B0 -> gamma gamma decay

Abstract

We report measurements of charmonium resonances (J/Psi, Psi(2S),Chi_c1) using about 25 fb^-1 of data collected by the BABAR detector around the Upsilon(4S) resonance. We present measurements of inclusive charmonium production of charmonium in B decays and from the continuum, as well as exclusive branching ratios of B mesons into charmonium final states. We present also a measurement of the B0 -> K*0 gamma branching ratio and a search for the decay B0 -> gamma gamma.