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One-body energy dissipation in fusion reaction from mean-field theory

Abstract : Information on dissipation in the entrance channel of heavy-ion collisions is extracted by macroscopic reduction procedure of Time-Dependent Hartree-Fock theory. The method gives access to a fully microscopic description of the friction coefficient associated with transfer of energy from the relative motion towards intrinsic degrees of freedom. The reduced friction coefficient exhibits a universal behavior, i.e. almost independent of systems investigated, whose order of magnitude is comparable with the calculations based on linear response theory. Similarly to nucleus-nucleus potential, especially close to the Coulomb barrier, there are sizable dynamical effects on the magnitude and form factor of friction coefficient.
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Contributor : Michel Lion <>
Submitted on : Wednesday, November 26, 2008 - 10:39:43 AM
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K. Washiyama, D. Lacroix, S. Ayik. One-body energy dissipation in fusion reaction from mean-field theory. Physical Review C, American Physical Society, 2009, 79, pp.024609. ⟨10.1103/PhysRevC.79.024609⟩. ⟨in2p3-00341836⟩



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