Rates, Polarizations, and Asymmetries in Charmless Vector-Vector<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>B</mml:mi></mml:math>Meson Decays

Abstract

With a sample of approximately $89\ifmmode\times\else\texttimes\fi{}{10}^{6}$ $B\overline{B}$ pairs collected with the BABAR detector, we perform a search for $B$ meson decays into pairs of charmless vector mesons ($\ensuremath{\varphi}$, $\ensuremath{\rho}$, and ${K}^{*}$). We measure the branching fractions, determine the degree of longitudinal polarization, and search for $CP$ violation asymmetries in the processes ${B}^{+}\ensuremath{\rightarrow}\ensuremath{\varphi}{K}^{*+}$, ${B}^{0}\ensuremath{\rightarrow}\ensuremath{\varphi}{K}^{*0}$, ${B}^{+}\ensuremath{\rightarrow}{\ensuremath{\rho}}^{0}{K}^{*+}$, and ${B}^{+}\ensuremath{\rightarrow}{\ensuremath{\rho}}^{0}{\ensuremath{\rho}}^{+}$. We also set an upper limit on the branching fraction for the decay ${B}^{0}\ensuremath{\rightarrow}{\ensuremath{\rho}}^{0}{\ensuremath{\rho}}^{0}$.