Tree-penguin interference and tests forcosγ<0in rareB→PP,PV,andVVdecays

Recent rare $\overrightarrow{B}PP,\mathrm{PV}$ decay data suggest that factorization holds well if, contrary to current fits, one has $\cos \gamma <0\mathrm{}$ where $\gamma \equiv \arg {(V}_{\mathrm{ub}}^{*}).\mathrm{}$ We update previous results with light cone sum rule form factors, which seem to work better. We then discuss various $\overrightarrow{B}\mathrm{VV}$ modes as well as the $K^{*}\eta$ modes. Finding the pattern of ${\rho }^{+}{\omega }^0<{\rho }^{+}{\rho }^0,$ $K^{*+}{\rho }^{-,0\mathrm{}}>K^{*0}{\rho }^{+},$ $K^{*+}{\omega }^0>K^{*0}{\omega }^0$ and $K^{*+}\eta >K^{*0}\eta$ would strengthen the support for $\cos \gamma <0.\mathrm{}$ The electroweak penguin amplitude enhances (suppresses) the $K^{*+}{\rho }^0{(K}^{*0}{\rho }^0)$ rate by a factor of 2, and finding $K^{*+}{\rho }^0\simeq K^{*+}{\rho }^{-}$ would be strong evidence for the electroweak penguin amplitude.