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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.
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http://hal.in2p3.fr/in2p3-01234624
Contributor : Sophie Heurteau <>
Submitted on : Friday, November 27, 2015 - 10:43:35 AM
Last modification on : Friday, July 3, 2020 - 11:14:00 AM

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David Lacroix, Y. Tanimura, G. Scamps. Collectivity in small and large amplitude microscopic mean-field dynamic. 22nd Nuclear Physics Workshop 'Marie & Pierre Curie' on Essential Problems in Nuclear Physics, Sep 2015, Kazimierz Dolny, Poland. pp.605, ⟨10.5506/APhysPolBSupp.8.605⟩. ⟨in2p3-01234624⟩

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