Eur. Phys. J. A (2011) 47: 134
https://doi.org/10.1140/epja/i2011-11134-0

Regular Article - Theoretical Physics

Study of fission dynamics with the three-dimensional Langevin equations

Department of Physics, Persian Gulf University, 75169, Bushehr, Iran

^* e-mail: m_eslamizadeh@yahoo.com

Received: 6 September 2011
Revised: 6 October 2011
Accepted: 11 October 2011
Published online: 7 November 2011

Abstract

The dynamics of fission has been studied by solving one- and three-dimensional Langevin equations with dissipation generated through the chaos weighted wall and window friction formula. The average prescission neutron multiplicities, fission probabilities and the mean fission times have been calculated in a broad range of the excitation energy for compound nuclei ²¹⁰Po and ²²⁴Th formed in the fusion-fission reactions ⁴He + ²⁰⁶Pb , ¹⁶O + ²⁰⁸Pb and results compared with the experimental data. The analysis of the results shows that the average prescission neutron multiplicities, fission probabilities and the mean fission times calculated by one- and three-dimensional Langevin equations are different from each other, and also the results obtained based on three-dimensional Langevin equations are in better agreement with the experimental data.