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Investigation of parity violation and interference effects in the angular distributions of fragments originating from 233U fission induced by resonance neutrons |
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| Authors: | V. P. Alfimenkov A. N. Chernikov A. M. Gagarski S. P. Golosovskaya I. S. Guseva I. S. Krasnoshchekova L. Lason Yu. D. Mareev V. V. Novitsky G. A. Petrov V. I. Petrova A. K. Petukhov L. B. Pikelner Yu. S. Pleva V. E. Sokolov M. I. Tsulaia V. M. Tsulaia |
| Affiliation: | (1) Petersburg Nuclear Physics Institute, Russian Academy of Sciences, Gatchina, 188350, Russia;(2) University of Lodz, Lodz, Poland;(3) Institute of Physics, Georgian Academy of Sciences, ul. Tamarashvili 6, GE-380077 Tbilisi, Republic of Georgia;(4) Joint Institute for Nuclear Research, Dubna, Moscow oblast, 141980, Russia |
| Abstract: | Three interference asymmetry effects in the angular distributions of fragments originating from 233U fission induced by resonance neutrons were measured. The energy dependences of the asymmetry factors being studied show sizable irregularities that are associated, according to modern theory, with the interference of s and p resonances at the stage of a compound nucleus. The basic features of weak p-wave resonances in the low-energy region were obtained from a global theoretical analysis of the asymmetry factors as functions of energy. The first estimates of nuclear matrix elements of weak interaction were derived for a few p-wave resonances. |
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