We investigate the possibility that the light-mass exotic mesons with J = 1−+ observed at BNL and CERN may be resonances in the ηπ and η′π systems associated with the anomalous glue which generates the η′ mass in QCD.

The cross section for the reaction 39~ K(e, ep)Ar is computed, and the dependence of the FSI on the initial polarization angles of the nucleus K is analyzed. The results are explained in a semi-classical picture of the reaction. This procedure allows us to find the best initial kinematical conditions for minimizing the FSI.

The implications of a negligible annihilation contribution in B → DK decays are reanalyzed and are shown to lead to no new constraints on the weak phase γ from color-allowed B → DK decays. A test of negligible annihilation is proposed in B → DK (or B → DK), and an application is presented in which γ can be determined from these processes (or corresponding B → DK decays) supplemented with isospi...