Search for B-Meson Decays to Two-Body Final States with a0(980) Mesons

TL;DR

This study searches for B meson decays into final states with a0(980) mesons but finds no significant signals, setting upper limits on their branching fractions based on data from the BABAR detector.

Contribution

First search for B decays involving a0(980) mesons with new upper limits on branching fractions using BABAR data.

Findings

No significant signals detected.

Established 90% confidence level upper limits on branching fractions.

Data sample of 89 million BBbar pairs used.

Abstract

We present a search for B decays to charmless final states involving charged or neutral a0 mesons. The data sample corresponds to 89 million BBbar pairs collected with the BABAR detector operating at the PEP-II asymmetric-energy B Factory at SLAC. We find no significant signals and determine the following 90% C.L. upper limits: BR(B0 -> a0-pi+) < 5.1x10{-6}, BR(B0 -> a0-K+) < 2.1x10{-6}, BR(B- -> a0-K0bar) < 3.9x10{-6}, BR(B+ -> a00pi+) < 5.8x10{-6}, BR(B+ -> a00K+) < 2.5x10{-6}, and BR(B0 -> a00K0) < 7.8x10{-6}, where in all cases BR indicates the product of branching fractions for B -> a0X and a0 -> etapi, where X indicates K or pi.