Description of true and delayed ternary nuclear fission accompanied by the emission of various third particles

Journal Article · Sun Aug 15 00:00:00 EDT 2010 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S106377881008017X· OSTI ID:21426681

Kadmensky, S S; Lyubashevsky, D E ^[1]

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1. Voronezh State University (Russian Federation)

The mechanisms and the features of the main types of nuclear ternary fission (that is, true ternary fission, in which a third particle is emitted before the rupture of the fissioning nucleus into fragments, and delayed ternary fission, in which a third particle is emitted from fission fragments going apart) are investigated within quantum-mechanical fission theory. The features of T-odd asymmetry in true ternary nuclear fission induced by cold polarized neutrons are investigated for the cases where alpha particles, prescission neutrons, and photons appear as third particles emitted by fissioning nuclei, the Coriolis interaction of the spin of the polarized fissioning nucleus with the spin of the third particle and the interference between the fission amplitudes for neutron resonances excited in the fissioning nucleus in the case of projectile-neutron capture being taken into account. For the cases where third particles emitted by fission fragments are evaporated neutrons or photons, T-odd asymmetries in delayed ternary nuclear fission induced by cold polarized neutrons are analyzed with allowance for the mechanism of pumping of large fission-fragment spins oriented orthogonally to the fragment-emission direction and with allowance for the interference between the fission amplitudes for neutron resonances.

• OSTI ID: 21426681
• Journal Information: Physics of Atomic Nuclei, Vol. 73, Issue 8; Other Information: DOI: 10.1134/S106377881008017X; Copyright (c) 2010 Pleiades Publishing, Ltd.; ISSN 1063-7788
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA PARTICLES
AMPLITUDES
ASYMMETRY
CAPTURE
EMISSION
FISSION FRAGMENTS
INTERACTIONS
NEUTRON REACTIONS
NEUTRONS
PHOTONS
PROJECTILES
QUANTUM MECHANICS
RESONANCE
SPIN
TERNARY FISSION
ANGULAR MOMENTUM
BARYON REACTIONS
BARYONS
BOSONS
CHARGED PARTICLES
ELEMENTARY PARTICLES
FERMIONS
FISSION
HADRON REACTIONS
HADRONS
IONIZING RADIATIONS
MASSLESS PARTICLES
MECHANICS
NUCLEAR FRAGMENTS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEONS
PARTICLE PROPERTIES
RADIATIONS