Published September 1991 | Version v1
Journal article Metadata-only

Pairing effects in 235U neutron-induced fission cross section

Creators

  • 1. Gosudarstvennyj Komitet po Ispol'zovaniyu Atomnoj Ehnergii SSSR, Obninsk (Russian Federation). Fiziko-Ehnergeticheskij Inst.
  • 2. AN Belorusskoj SSR, Minsk (Belarus). Inst. Yadernoj Ehnergetiki

Description

The well-known structure in 235U neutron induced fission cross section is interpreted as a manifestation of quasiparticle excitations of fissile nucleus. The discrete character of such excitations leads to step-like structure in the intrinsic state density. Taking into account collective excitations the observed irregularity in fission cross section using the threshold dependence of the two-quasiparticle state density for outer 236U saddle point is analyzed quantitatively. Evaluation of excitation threshold is agreed to energy gap and fission barrier

Additional details

Additional titles

Original title (Russian)
Эффекты парной корреляции нуклонов в сечении деления

Publishing Information

Journal Title
Yadernaya Fizika
Journal Volume
54
Journal Issue
3
Series
Yad. Fiz.
Journal Page Range
647-653
ISSN
0044-0027
CODEN
IDFZA

INIS

Country of Publication
Russian Federation
Country of Input or Organization
USSR
INIS RN
23084662
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Descriptors DEI
COLLECTIVE EXCITATIONS; CROSS SECTIONS; ENERGY DEPENDENCE; ENERGY-LEVEL DENSITY; FISSION; FISSION BARRIER; KEV RANGE 100-1000; NEUTRON REACTIONS; NUCLEAR DEFORMATION; NUCLEAR STRUCTURE; SADDLE-POINT METHOD; STATISTICAL MODELS; THRESHOLD ENERGY; URANIUM 235 TARGET
Descriptors DEC
BARYON REACTIONS; CALCULATION METHODS; DEFORMATION; ENERGY; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; EXCITATION; HADRON REACTIONS; KEV RANGE; MATHEMATICAL MODELS; NUCLEAR REACTIONS; NUCLEON REACTIONS; POTENTIAL ENERGY; TARGETS