Deformation energy minima at finite mass asymmetry
National Institute of Physics and Nuclear Engineering
RO-077125 Bucharest, Romania
2 Institut für Theoretische Physik der J. W. Goethe Universität D-60054 Frankfurt am Main, Germany
Accepted: 7 August 2003
A very general saddle point nuclear shape may be found as a solution of an integro-differential equation without giving a priori any shape parametrization. By introducing phenomenological shell corrections one obtains minima of deformation energy for binary fission of parent nuclei at a finite (nonzero) mass asymmetry. Results are presented for reflection asymmetric saddle point shapes of thorium and uranium even-mass isotopes with A=226–238 and A=230–238, respectively.
PACS: 24.75.+i – General properties of fission / 25.85.Ca – Spontaneous fission / 27.90.+b –
© EDP Sciences, 2003