Measurement of the Branching Fraction for B- --> D0 K*-

TL;DR

This paper reports a precise measurement of the branching fraction for the decay B- to D0 K*- using a large data sample from the BaBar experiment, providing important data for understanding B meson decays.

Contribution

The study provides the first detailed measurement of the B- to D0 K*- branching fraction with improved accuracy over previous results.

Findings

Branching fraction measured as (6.3 +/- 0.7(stat.) +/- 0.5(syst.)) x 10^{-4}

Data sample consisted of approximately 86 million BBbar pairs

Results contribute to understanding of B meson decay processes.

Abstract

We present a measurement of the branching fraction for the decay B- --> D0 K*- using a sample of approximately 86 million BBbar pairs collected by the BaBar detector from e+e- collisions near the Y(4S) resonance. The D0 is detected through its decays to K- pi+, K- pi+ pi0 and K- pi+ pi- pi+, and the K*- through its decay to K0S pi-. We measure the branching fraction to be B.F.(B- --> D0 K*-)= (6.3 +/- 0.7(stat.) +/- 0.5(syst.)) x 10^{-4}.