Global SU(3)/U(3) flavor symmetry analysis for B → PP with η - η′ mixing

A large number of new experimental data on B decay into two light pesudoscalar (P) mesons have been collected by the LHCb collaboration. Besides confirming information on B-u,B-d --> PP decays obtained earlier by B-factories at KEK and SLAC, new information on B-s --> PP and also more decay modes with P being eta or eta' have been obtained. Using these new data, we perform a global fit for B. PP to determine decay amplitudes in the framework of SU(3)/U(3) flavor symmetry. We find that SU(3) flavor symmetry can explain data well. The annihilation amplitudes are found to be small as expected. Several CP violating relations predicted by SU(3) flavor symmetry are in good agreement with data. Current available data can give constraints on the amplitudes which induce P = eta, eta' decays in the framework of U(3) flavor symmetry, and can also determine the eta, eta' mixing angle theta with theta = (-18.4 +/- 1.2)degrees. Several B --> PP decay modes which have not been measured are predicted with branching ratios accessible at the LHCb. These decays can provide further tests for the framework of SU(3)/U(3) flavor symmetry for B decays.