Influence of dynamical parameters on pre-scission particles and fission probability in heavy-ion collisions

Journal Article · Tue Feb 15 04:00:00 EST 2011 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.83.024602· OSTI ID:21499419

Pahlavani, M R; Naderi, D ^[1]

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1. Department of Physics, Faculty of Basic Science, Mazandaran University, P.O. Box 47416-1467, Babolsar (Iran, Islamic Republic of)

A stochastic approach to fission dynamics based on one- and three-dimensional Langevin equations was applied to calculate the fission probability and the pre-scission particle multiplicity. Evaporation of pre-scission light particles along Langevin fission trajectories from the ground state of the compound nucleus to its scission and fission probability have been calculated using a Monte Carlo simulation technique. To examine this approach we used {sup 19}F+{sup 181}Ta and {sup 16}O+{sup 197}Au systems. Our results show that the fission probability and pre-scission particle multiplicity in three dimensions is different from the one-dimensional Langevin approach. The theoretical results of pre-scission neutron, proton, and {alpha}-particle multiplicities and the fission probability for given systems based on this model are compared with available experimental data. The obtained results using three-dimensional calculations are in better agreement with experimental data.

• OSTI ID: 21499419
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 2 Vol. 83; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA PARTICLES
BARYONS
CALCULATION METHODS
CHARGED PARTICLES
COMPOUND NUCLEI
COMPUTERIZED SIMULATION
ELEMENTARY PARTICLES
EQUATIONS
EVEN-EVEN NUCLEI
FERMIONS
FISSION
FLUORINE 19
FLUORINE ISOTOPES
GOLD 197
GOLD ISOTOPES
HADRONS
HEAVY ION REACTIONS
HEAVY NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
IONIZING RADIATIONS
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LANGEVIN EQUATION
LIGHT NUCLEI
MONTE CARLO METHOD
MULTIPLICITY
NEUTRONS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
ODD-EVEN NUCLEI
ONE-DIMENSIONAL CALCULATIONS
OXYGEN 16
OXYGEN ISOTOPES
PARTICLES
PROBABILITY
PROTONS
RADIATIONS
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SIMULATION
STABLE ISOTOPES
STOCHASTIC PROCESSES
TANTALUM 181
TANTALUM ISOTOPES
THREE-DIMENSIONAL CALCULATIONS