Quantum calculations of Coulomb reorientation for sub-barrier fusion

Details Quantum calculations of Coulomb reorientation for sub-barrier fusion Quantum calculations of Coulomb reorientation for sub-barrier fusion

2004-01-21

arxiv.org/abs/nucl-th/0401044v5

Phys.Rev.Lett. 93 (2004) 102701

Physics

Nuclear Physics

Nuclear Theory

accepted for publication in Physical Review Letter

Scientific paper

10.1103/PhysRevLett.93.102701

Classical mechanics and Time Dependent Hartree-Fock (TDHF) calculations of heavy ions collisions are performed to study the rotation of a deformed nucleus in the Coulomb field of its partner. This reorientation is shown to be independent on charges and relative energy of the partners. It only depends upon the deformations and inertias. TDHF calculations predict an increase by 30% of the induced rotation due to quantum effects while the nuclear contribution seems negligible. This reorientation modifies strongly the fusion cross-section around the barrier for light deformed nuclei on heavy collision partners. For such nuclei a hindrance of the sub-barrier fusion is predicted.

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