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Measurement of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>B</mml:mi><mml:mn>0</mml:mn></mml:msup><mml:mo>→</mml:mo><mml:msubsup><mml:mi>K</mml:mi><mml:mn>2</mml:mn><mml:mo>*</mml:mo></mml:msubsup><mml:mo stretchy="false">(</mml:mo><mml:mn>1430</mml:mn><mml:msup><mml:mo stretchy="false">)</mml:mo><mml:mn>0</mml:mn></mml:msup><mml:mi>γ</mml:mi></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:…
We have investigated the exclusive, radiative $B$ meson decays to ${K}_{2}^{*}(1430)$ in $89\ifmmode\times\else\texttimes\fi{}{10}^{6}$ $B\overline{B}$ events with the BABAR detector at the PEP-II storage ring. We measure the branching fractions $\mathcal{B}({B}^{0}\ensuremath{\rightarrow}{K}_{2}^{*}(1430{)}^{0}\ensuremath{\gamma})=(1.22\ifmmode\pm\else\textpm\fi{}0.25\ifmmode\pm\else\textpm\fi{}0.10)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}5}$ and $\mathcal{B}({B}^{+}\ensuremath{\rightarrow}{K}_{2}^{*}(1430{)}^{+}\ensuremath{\gamma})=(1.45\ifmmode\pm\else\textpm\fi{}0.40\ifmmode\pm\else\textpm\fi{}0.15)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}5}$, where the first error is statistical and the second systematic. In addition, we measure the $CP$-violating asymmetry ${\mathcal{A}}_{CP}[{B}^{0}\ensuremath{\rightarrow}{K}_{2}^{*}(1430{)}^{0}\ensuremath{\gamma}]=\ensuremath{-}0.08\ifmmode\pm\else\textpm\fi{}0.15\ifmmode\pm\else\textpm\fi{}0.01$.