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arXiv · 1509.09155

Collectivity in small and large amplitude microscopic mean-field dynamic

Denis Lacroix·Yusuke Tanimura·Guillaume Scamps
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Abstract

The time-dependent energy density functional with pairing allows to describe a large variety of phenomena from small to large amplitude collective motion. Here, we briefly summarize the recent progresses made in the field using the TD-BCS approach. A focus is made on the mapping of the microscopic mean-field dynamic to the macroscopic dynamic in collective space. A method is developed to extract the collective mass parameter from TD-EDF. Illustration is made on the fission of $^{258}$Fm. The collective mass and collective momentum associated to quadrupole deformation including non-adiabatic effects is estimated along the TD-EDF path. With these information, the onset of dissipation during fission is discussed.

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Denis Lacroix, Yusuke Tanimura, Guillaume Scamps. 2015-09-30. Collectivity in small and large amplitude microscopic mean-field dynamic. https://arxiv.org/abs/1509.09155

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