Measurement of Charmless B to Vector-Vector decays at BaBar

TL;DR

This paper reports measurements of various charmless B meson decays into vector and axial-vector mesons using a large dataset from the BaBar experiment, providing insights into rare decay processes.

Contribution

First comprehensive measurement of multiple charmless B to VV and VA decays using 465 million B meson pairs at BaBar.

Findings

Measured branching fractions for several B decay modes.

Provided data to test theoretical models of B decays.

Enhanced understanding of charmless B decay dynamics.

Abstract

We present results of B -> vector-vector (VV) and B -> vector-axial vector (VA) decays B0 -> phi X (X = phi, rho+ or rho0), B+ -> phi K(*)+, B0 -> K*K*, B0 -> rho+b_1- and B+ -> K*0a_1+. The largest dataset used for these results is based on 465 * 10^6 Y(4S) -> BB decays, collected with the BABAR detector at the PEP-II B meson factory located at the Stanford Linear Accelerator Center (SLAC).