Fission via compound states and J^πK A. Bohr's channels: what we can learn from recent studies with slow neutrons

¹ NRC “Kurchatov Institute”, Moscow 123182, Russia
² Moscow Institute of Physics and Technology, Dolgoprudny 141700, Moscow Region, Russia
³ Frank Laboratory of Neutron Physics, JINR, Dubna 141980, Russia

^a e-mail: barab@mbslab.kiae.ru

Abstract

Last data on angular correlations of fission fragments from slow (s-wave) neutron induced binary fission of spin-aligned nuclei ²³⁵U are discussed in the context of J^πK A. Bohrs channels. Special attention is paid to K = 0 channel. Reasons for its suppression are specified for compound nucleus states of negative parity. A brief overview of recent data on T-odd angular correlations in ternary and binary (with emission of a third particle, a neutron or γ-quantum) fission induced by slow polarized neutrons is presented. On the basis of the developed theoretical approach it is shown that a valuable information on J^πK fission channels at scission point can be inferred from these T-odd angular correlations.