2012
DOI: 10.1103/physrevc.86.054302
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Abstract: We discuss the need of including tensor terms in the effective Gogny interaction used in meanfield calculations. We show in one illustrative case that, with the usual tensor term that is employed in the Skyrme interaction (and that allows us to separate the like-nucleon and the neutron-proton tensor contributions), we can describe the evolution of the N = 28 neutron gap in calcium isotopes.We propose to include a tensor and a tensor-isospin term in finite-range interactions of Gogny type. The parameters of the… Show more

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Cited by 64 publications
(94 citation statements)
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“…The D1ST2a Gogny interaction used here is built from the D1S Gogny interaction to which is added a finite range tensor term [23]. We focused our work on the Mg, Si, S, Ar, Sr and Zr chains looking at the potential energy curves with respect to the quadrupole deformation moment variable and ground states properties.…”
Section: Discussionmentioning
confidence: 99%
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“…The D1ST2a Gogny interaction used here is built from the D1S Gogny interaction to which is added a finite range tensor term [23]. We focused our work on the Mg, Si, S, Ar, Sr and Zr chains looking at the potential energy curves with respect to the quadrupole deformation moment variable and ground states properties.…”
Section: Discussionmentioning
confidence: 99%
“…The range of the D1ST2a tensor term was chosen as the longest one of the D1S parametrizations and the two remaining parameters of the tensor term were adjusted on specific structure properties [23]. Modifying these latter parameters enable us to decompose the tensor contribution to the HFB energy to a like-particle part and a proton-neutron part.…”
Section: Discussionmentioning
confidence: 99%
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“…Among the finite-range ones, let us mention the M3Y type effective interaction by Nakada [7,26,27], which includes finite-range spin-orbit and tensor terms, whose parameters are fitted to the Brueckner's G-matrix based on a bare interaction. Much closer to the spirit of an effective interaction, a tensor term was added to a Gogny-type potential to describe the evolution of nuclear shells for exotic nuclei as well as stable ones [20,28]. Concerning Skyrme interactions, zero-range tensor terms as originally proposed by Skyrme have been either included perturbatively to existing central ones or with a complete refit of the parameters [19].…”
Section: Introductionmentioning
confidence: 99%