Eur. Phys. J. A (2005) 24: 223-229
https://doi.org/10.1140/epja/i2004-10138-1

Original Article

Deformation and orientation effects in the driving potential of the dinuclear model

¹ Institute of Theoretical Physics, Chinese Academy of Sciences, P.O. Box 2735, 100080, Beijing, PRC
² Institute of Modern Physics, Chinese Academy of Sciences, 730000, Lanzhou, PRC
³ Research Center of Nuclear Theory of National Laboratory of Heavy Ion Accelerator of Lanzhou, 730000, Lanzhou, PRC
⁴ Department of Physics, College of Science, Shenzhen University, 518060, Shenzhen, PRC
⁵ Department of Physics, Tsinghua University, 100084, Beijing, PRC
⁶ Institut für Theoretische Physik, Justus-Liebig-Universität, D-35392, Giessen, Germany
⁷ FIAS, Universität Frankfurt, D-60054, Frankfurt, Germany

^* e-mail: jqli@impcas.ac.cn

Received: 13 August 2004
Accepted: 11 February 2005
Published online: 18 March 2005

Abstract

A double-folding method is used to calculate the nuclear and Coulomb interaction between two deformed nuclei with arbitrary orientations. A simplified Skryme-type interaction is adopted. The contributions of the nuclear and Coulomb interactions due to the deformation and orientation of the nuclei are evaluated for the driving potential used in the description of heavy-ion fusion reaction. So far there is no satisfactory theory to describe the evolution of the dynamical nuclear deformation and orientations during the heavy-ion fusion process. Our results estimate the magnitude of the above effects.