Quantum calculation of Coulomb reorientation and near-barrier fusion

Cédric Simenel (1, 2) , Michael Bender (1, 2) , P. Chomaz (3) , Thomas Duguet (2) , G. de France (3)

1 DPHN - Département de Physique Nucléaire (ex SPhN)
2 NSCL, MSU - National Superconducting Cyclotron Laboratory, Michigan State University
3 GANIL - Grand Accélérateur National d'Ions Lourds

We investigate the role of deformation on the fusion probability around the barrier using the Time-Dependent Hartree-Fock theory with a full Skyrme force. We obtain a distribution of fusion probabilities around the nominal barrier due to the different contributions of the various orientations of the deformed nucleus at the touching point. It is also shown that the long range Coulomb reorientation reduces the fusion probability around the barrier.

Mots clés: Hartree-Fock and random-phase approximations; Fusion reactions; Coulomb excitation

Domaines: Physique Nucléaire Théorique [nucl-th]

Cédric Simenel, Michael Bender, P. Chomaz, Thomas Duguet, G. de France. Quantum calculation of Coulomb reorientation and near-barrier fusion. FUSION06, Mar 2006, Venezia, France. ⟨hal-00067772⟩