Study of eta pi- production by pions in the Coulomb field
VES collaboration, D. V. Amelin, E. B. Berdnikov, S. I. Bityukov, G. V. Borisov, R. I. Dzhelyadin, V. A. Dorofeev, A. V. Ekimov, Yu. P. Gouz, A. K. Konoplyannikov, A. N. Karyukhin, I. A. Kachaev, Yu. A. Khokhlov, S. A. Likhoded, V. D. Matveyev, A. P. Ostankov, D. I. Ryabchikov, O. V. Solovianov, A. A. Solodkov, E. A. Starchenko, N. K. Vishnevsky, E. V. Vlassov, A. M. Zaitsev, G. G. Sekhniaidze, E. G. Tskhadadze
Abstract
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.
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