Электронный каталог

Книга (аналит. описание)

Kamanin, D.
A New Region of Fission Isomers in Medium-Mass Nuclei / D.Kamanin, Yu.V.Pyatkov, Z.I.Goryainova, E.A.Kuznetsova, Yu.M.Sereda, A.N.Solodov, O.V.Strekalovsky, V.E.Zhuchko, A.O.Zhukova, Th.Vilane // The 2nd International African Symposium on Exotic Nuclei IASEN2024, Cape Town, 09 - 13 December 2024 : Book of Abstracts [Electronic resource]. – Cape Town, 2024. – P. 37-38. – URL: http://inis.jinr.ru/sl/NTBLIB/IASEN-2024-P37.pdf. – Bibliogr.: 2.

In a long series of experiments, in different settings, we have observed the Coulomb induced breakup of the fission fragments (FFs) in the solid foils [1, 2]. The break-up occurs with a delay after the initial binary fission event of the mother system. The fusion-fission channel is excluded as a cause of the break-up at the typical energies of the FFs undergoing the break-up which are approximately 1 MeV per nucleon. In our experiments, the time-of-flight between the FF’s source and the foil where the break-up takes place provided an estimate of the delay. This value can be regarded as a lower estimate of the lifetimes of the shape isomer states of the FFs undergoing the break-up. It is estimated to be up to 400ns. The discussed in this work results on the induced break-up of the medium-mass nucleus from the shape isomer state have not been observed experimentally before, and there are no theoretical predictions of the observed effect.



Спец.(статьи,препринты) = С 341.2в1 - Изомеры и метастабильные состояния. Высокоспиновые состояния
ОИЯИ = ОИЯИ (JINR)2024