Crystal Ball physics

Selected results are presented for neutral final-state reactions produced by π− and K− beams incident on a proton target. Special attention is given to 2π0 production. Evidence is found for the applicability of dynamic SU(3) flavor symmetry. New data on η decays are included, such as two novel tests of C invariance. The experiments were carried out with the Crystal Ball multiphoton spectrometer in the C6 line of the AGS.