Strong indications of true quaternary fission of 252Cf(sf)
Yu.V. Pyatkov 1, D.V. Kamanin 2 , A.D. Tomas 1, Z.I. Goryainova 2, A.O. Strekalovsky 2
1 National Nuclear Research University MEPhI (Moscow Engineering Physics Institute), Moscow, Russia
2 Joint Institute for Nuclear Research, Dubna, Russia
In our previous publications [1, 2] we discussed possible physical scenario standing behind rectangular–like structures in the fission fragments mass-correlation distributions from 252Cf(sf) and 235U(nth, f). The rectangle is bounded by the known magic nuclei such as 68Ni, 84Se and others. The fission events aggregated in the rectangle show extremely low total kinetic energies. Previously only decay mode with two Ni clusters in the exit channel was discussed. A more complete analysis are presented which gives additional arguments in favor of true quaternary fission of 252Cf (sf).
- D.V. Kamanin et al., Int. Symposium on Exotic Nuclei "EXON-2016", Kazan, Russia, 04–10 September 2016. Conference proceedings, Editors: Yu.E. Penionzhkevich, and Yu.G. Sobolev. Published by World Scientific Publishing Co. Pte. Ltd., 2017. p. 243–248.
- Yu. V. Pyatkov et al., Journal of Physics: Conference Series, V. 863 (2017) 012046.