Search for the rare decay B+ -> a0+pi0

TL;DR

This study searched for the rare decay B+ -> a0+pi0 using data from the BABAR detector, but found no evidence and set an upper limit on its branching fraction, contributing to understanding B meson decays.

Contribution

First search for the B+ -> a0+pi0 decay with a large data sample, establishing an upper limit on its branching fraction.

Findings

No signal observed for B+ -> a0+pi0 decay.

Upper limit on branching fraction set at 1.32 x 10^{-6}.

Data sample included approximately 252 million BBbar pairs.

Abstract

A search for the decay B+ -> a0+pi0 with the a0+ decaying to an eta and a pi+ was carried out at the Stanford Linear Accelerator Center using the BABAR detector coupled with the PEP-II collider. The analysis used a data sample comprised of approximately 252 million BBbar pairs collected at the Upsilon(4S) resonance. No signal was observed and a 90% confidence level upper limit on the branching fraction was set at 1.32 x 10^{-6}.