Dependence of the ROT effect on the energy of different light charged particles and on the incident neutron energy
1 Petersburg Nuclear Physics Institute named by B.P. Konstantinov of NRC Kurchatov Institute, 188300 Gatchina, Russia
2 Physikalisches Institut, Universität Tübingen, 72076 Tübingen, Germany
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Published online: 15 December 2021
The shift of the angular distribution of different light charged particles in ternary fission of 235U induced by polarized neutrons, the so-called ROT effect, was estimated by modified trajectory calculations, which take into account the rotation of the compound nucleus. In previous publications only α-particles were considered. It is shown here that inclusion of tritons significantly improves the agreement of the energy dependence of the ROT effect with experiment while the inclusion of 5He particles practically does not influence this dependence. In particular, the change in the magnitude of the ROT effect depending on the energy of incident neutrons is correctly predicted. Also, the ROT effect for gamma quanta and neutrons in binary fission is discussed along the same lines, because all mentioned effects are proportional to the effective angular velocity of the compound nucleus at the moment of scission.
© The Authors, published by EDP Sciences, 2021
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