Improved Measurements of Color-Suppressed Decays B0bar -> D0 pi0, D0 eta and D0 omega

TL;DR

This paper reports improved measurements of the branching fractions for color-suppressed B0bar decays to D0 and neutral light mesons, utilizing a larger data sample from the Belle detector to enhance precision.

Contribution

The study provides more accurate measurements of B0bar decay branching fractions, significantly increasing the data sample compared to previous Belle results.

Findings

More precise branching fraction measurements obtained.

Data sample increased by a factor of seven.

Results contribute to understanding of color-suppressed decay mechanisms.

Abstract

We present preliminary improved measurements of the branching fractions of the color-suppressed decays B0bar -> D0 h0, where h0 represents the three light neutral mesons pi0, eta and omega. The measurements are based on a data sample of 140fb-1 collected at the Upsilon(4S) with the Belle detector at the KEKB energy-asymmetric e+e- collider, corresponding to seven times the luminosity of the previous Belle measurements.