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Your search keyword '"Berger, J. A."' showing total 3 results
Start Over Author "Berger, J. A." Topic hartree-fock approximation Topic nuclear physics
3 results on '"Berger, J. A."'

2. Fission: Potential Energy Surfaces and Dynamics.

Author

Goutte, H., Berger, J. F., and Gogny, D.

Subjects
*POTENTIAL energy surfaces, *QUANTUM chemistry, *QUANTUM theory, *HARTREE-Fock approximation, *ENERGY-band theory of solids, *NUCLEAR reactions, *NUCLEAR physics
Abstract

Recent microscopic studies devoted to fission are presented. First, potential energy surface properties are extracted using the Hartree-Fock-Bogoliubov theory with constraints. Then, dynamical properties of the fission process are studied by use of the time-dependent Generator Coordinate Method based on self-consistent intrinsic nuclear wave functions calculated with the Gogny force. The influence of fission dynamics on fragment mass distributions is discussed. © 2005 American Institute of Physics [ABSTRACT FROM AUTHOR]

Published
2005
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3. Giant resonances in exotic spherical nuclei within the RPA approach with the Gogny force.

Author

Péru, S., Berger, J. F., and Bortignon, P. F.

Subjects
*GIANT nuclear magnetic resonance, *HARTREE-Fock approximation, *APPROXIMATION theory, *NUCLEAR magnetic resonance, *NUCLEAR reactions, *PARTICLES (Nuclear physics), *NUCLEAR physics
Abstract

Theoretical results for giant resonances in the three doubly magic exotic nuclei 78Ni, 100Sn and 132Sn are obtained from Hartree-Fock (HF) plus Random Phase Approximation (RPA) calculations using the D1S parameterization of the Gogny two-body effective interaction. Special attention is paid to full consistency between the HF field and the RPA particle-hole residual interaction. The results for the exotic nuclei, on average, appear similar to those of stable ones, especially for quadrupole and octupole states. More exotic systems have to be studied in order to confirm such a trend. The low energy of the monopole resonance in 78Ni suggests that the compression modulus in this neutron-rich nucleus is lower than the one of stable ones. [ABSTRACT FROM AUTHOR]

Published
2005
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