Measurements of the Branching Fractions and Bounds on the Charge Asymmetries of Charmless Three-Body Charged B Decays

TL;DR

This paper reports measurements of branching fractions and charge asymmetries for specific charmless three-body B-meson decays, using data from the BaBar experiment, with results indicating no significant charge asymmetries.

Contribution

First precise measurements of branching fractions and charge asymmetries for several charmless three-body B decays using BaBar data.

Findings

Measured branching fractions for B+ decays to pi+ pi- pi+, K+ pi- pi+, and K+ K- K+.

No significant charge asymmetries observed in these decay modes.

Provided 90% confidence level upper limits for other decay channels.

Abstract

We present measurements of branching fractions and charge asymmetries for charmless B-meson decays to three-body final states of charged pions and kaons. The analysis uses 81.8 fb^-1 of data collected at the Upsilon(4S) resonance with the BaBar detector at the SLAC PEP-II asymmetric B Factory. We measure the branching fractions B(B+ -> pi+ pi- pi+) = (10.9 +/- 3.3 +/- 1.6) x 10^-6, B(B+ -> K+ pi- pi+) = (59.1 +/- 3.8 +/- 3.2) x 10^-6, and B(B+ -> K+ K- K+) = (29.6 +/- 2.1 +/- 1.6) x 10^-6, and provide 90% C.L. upper limits for other decays. We observe no charge asymmetries for these modes.