# Collectivity in small and large amplitude microscopic mean-field dynamic

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.
Document type :
Preprints, Working Papers, ...
Domain :

http://hal.in2p3.fr/in2p3-01234624
Contributor : Sophie Heurteau <>
Submitted on : Friday, November 27, 2015 - 10:43:35 AM
Last modification on : Thursday, January 11, 2018 - 6:12:41 AM

### Identifiers

• HAL Id : in2p3-01234624, version 1
• ARXIV : 1509.09155

### Citation

D. Lacroix, Y. Tanimura, G. Scamps. Collectivity in small and large amplitude microscopic mean-field dynamic. 2015. ⟨in2p3-01234624⟩

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