Measurement of Branching Fractions for B0 ->K*2(1430)0 gamma and B+ -> K*2(1430)+ gamma

TL;DR

This paper reports the measurement of branching fractions for specific radiative B-meson decays to K*_2(1430) states, providing experimental data crucial for understanding flavor physics and testing the Standard Model.

Contribution

First measurement of branching fractions for B0 and B+ decays to K*_2(1430) gamma in a large dataset, advancing experimental knowledge in B-meson decay channels.

Findings

BR(B->K*_2(1430)^0 gamma) = (1.22+-0.25+-0.11) * 10^{-5}

BR(B->K*_2(1430)^+ gamma) = (1.44+-0.40+-0.13) * 10^{-5}

Experimental branching fractions reported for the first time.

Abstract

We have investigated the exclusive, radiative B-meson decay to K_2^*(1430) in 88.5 * 10^6 BBbar events. We present a preliminary measurement of the branching fractions BR(B->K^*_2(1430)^0 gamma) = (1.22+-0.25+-0.11) * 10^{-5} and BR(B->K^*_2(1430)^+ gamma) = (1.44+-0.40+-0.13) * 10^{-5}.