Measurements of charmless three-body and quasi-two-body B decays

TL;DR

This paper reports preliminary measurements of charmless three-body and quasi-two-body B meson decays using BABAR data, providing branching fractions and upper limits for various decay modes.

Contribution

It presents the first measurements and upper limits for several charmless B decay modes, expanding knowledge of B meson decay processes.

Findings

Measured B(B^0 --> rho^(-/+)pi^(+/-)) = (49+/-13+/-5) x 10^{-6}

Measured B(B^+ --> eta^' K^+) = (62+/-18+/-8) x 10^{-6}

Set upper limits for eight other decay modes.

Abstract

We present preliminary results of a search for several exclusive charmless hadronic B decays from electron-positron annihilation data collected by the BABAR detector near the Y(4S) resonance. These include three-body decay modes with final states h^{+/-}h^{-/+}h^{+/-} and h^{+/-}h^{-/+}pi^0, and quasi-two-body decay modes with final states X^0 h and X^0 K0S, where h = pi or K and X^0 = eta^' or omega. We find B(B^0 --> rho^(-/+)pi^(+/-)) = (49+/-13^{+6}_{-5}) x 10^{-6} and B(B^+ --> eta^' K^+) = (62+/-18+/-8) x 10^{-6} and present upper limits for eight other decays.