Study of eta pi- production by pions in the Coulomb field
  The production of eta pi - system at low mass by the pi- beam in the Coulomb field of Be nuclei was studied. The cross section of the reaction pi- Be --> eta pi- Be was compared to the experimental data on the decay eta --> pi+ pi- gamma and to the theoretical predictions. 
VES collaboration: D. V. Amelin, E. B. Berdnikov, S. I. Bityukov, G.   V. Borisov, R. I. Dzhelyadin, V. A. Dorofeev, A. V. E...