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GOGNY FORCE CARACTERISTICS |
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The Gogny effective interaction reads |
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In this expression, the first line represents the central finite
range part (μj) of the force,
the second line represents the density dependent term and the third line the spin-orbit
term having a zero range. Finally, the last line describes
the Coulomb interaction between protons
(τiz=1/2 for
protons and τiz=-1/2
for neutrons). |
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Because of the finite range of the Gogny force, the parameters of the
interaction can be adjusted to reproduce not only global properties of
nuclei coming out of the mean field theory, but also the intensity of the
pairing correlations existing between the nucleons.
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The parameters of the D1S interaction are |
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j
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μj(fm)
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Wj(MeV)
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Bj(MeV)
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Hj(MeV)
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Mj(MeV)
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1
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0.7
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-1720.30
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1300.00
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-1813.53
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1397.60
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2
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1.2
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103.639
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-163.483
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162.812
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-223.933
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for the central part, and |
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t3(MeV.fm3)
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x0
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α
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WLS(MeV)
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1390.60
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1.0
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1/3
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-130.00
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for the density-dependent and spin-orbit terms. |
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More details can be found in the following papers : |
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• J.F. Berger, M. Girod and D.Gogny, Comp. Phys. Comm., 63 (1991) 365. |
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• J.Dechargé and D.Gogny, Phys. Rev. C 21., (1980) 1568. |
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