Eur. Phys. J. A (2003) 18: 627-631
https://doi.org/10.1140/epja/i2003-10088-0
https://doi.org/10.1140/epja/i2003-10088-0
Inverse Kramers formula and fusion dynamics of heavy ions
1
GANIL, BP 55027, F-14076, Caen cedex, France
2
Yukawa Institute for Theoretical Physics, Kyoto University, 606-8502, Kyoto, Japan
3
Department of Physics, Beijing Normal University, 100875, Beijing, PRC
* e-mail: boilley@ganil.fr
Fusion probability of colliding heavy ions is evaluated by exactly solving a Langevin equation with a parabolic potential barrier. The model, which accommodates dissipation in the approaching phase, leads to an inverse Kramers formula and an expression of the extra-push energy. In the very specific case of an overdamped regime, an Arrhenius-type formula is obtained.
© Società Italiana di Fisica and Springer-Verlag, 2003
