Gogny interactions with tensor terms

Abstract : We present a perturbative approach to include tensor terms in the Gogny interaction. We do not change the values of the usual parameterisations, with the only exception of the spin-orbit term, and we add tensor terms whose only free parameters are the strengths of the interactions. We identify observables sensitive to the presence of the tensor force in Hartree-Fock, Hartree-Fock-Bogoliubov and random phase approximation calculations. We show the need of including two tensor contributions, at least: a pure tensor term and a tensor-isospin term. We show results relevant for the inclusion of the tensor term for single-particle energies, charge-conserving magnetic excitations and Gamow-Teller excitations.
Type de document :
Article dans une revue
European Physical Journal A, EDP Sciences, 2016, 52 (7), pp.183. 〈10.1140/epja/i2016-16183-1〉
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Soumis le : mercredi 24 août 2016 - 10:58:03
Dernière modification le : jeudi 11 janvier 2018 - 06:12:41




M. Anguiano, A. M. Lallena, G. Co’, V. De Donno, M. Grasso, et al.. Gogny interactions with tensor terms. European Physical Journal A, EDP Sciences, 2016, 52 (7), pp.183. 〈10.1140/epja/i2016-16183-1〉. 〈in2p3-01355755〉



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