Angular momentum effects in heavy-ion-induced fission
- Dipartimento di Fisica dell'Universita' di Messina and Istituto Nazionale di Fisica Nucleare, Gruppo Collegato di Messina Salita Sperone 31, 98166 Vill S. Agata-Messina (Italy)
We analyze angular momentum effects in heavy-ion-induced fission in terms of the statistical model, including collective effects in the nonadiabatic approach and avoiding all the usual numerical approximations and free parameters but one. We find that the strong increase of the fission probability along with the increasing compound nucleus spin is responsible for several observable effects such as the increase of the fission cross section and the decrease of the multiple-chance fission contribution, with the increase of the projectile mass. It is shown that the fission is particularly sensitive to the fusion cross section and its spin distribution. This feature can be used to determine the latter two from the measured fission cross section.
- OSTI ID:
- 6997781
- Journal Information:
- Physical Review, C (Nuclear Physics); (United States), Vol. 46:4; ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ERBIUM 158
FISSION
SPIN
HEAVY ION REACTIONS
COMPOUND NUCLEI
HAUSER-FESHBACH THEORY
NUMERICAL ANALYSIS
STATISTICAL MODELS
TOTAL CROSS SECTIONS
ANGULAR MOMENTUM
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
ELECTRON CAPTURE RADIOISOTOPES
ERBIUM ISOTOPES
EVEN-EVEN NUCLEI
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
ISOTOPES
MATHEMATICAL MODELS
MATHEMATICS
NUCLEAR REACTIONS
NUCLEAR THEORY
NUCLEI
PARTICLE PROPERTIES
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
663470* - Fission- (1992-)
663570 - Nuclear Mass Ranges- A=150-189- (1992-)