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Nuclear matter response function with a central plus tensor Landau interaction

par Pastore, Alessandro ;Davesne, Dany;Navarro, Garcìa
Référence Journal of physics. G, Nuclear and particle physics, 41, page (055103)
Publication Publié, 2014-02-26

Article révisé par les pairs

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Résumé :

We present a method to obtain response functions in the random phase approximation (RPA) based on a residual interaction described in terms of Landau parameters with central plus tensor contributions. The response functions keep the explicit momentum dependence of the RPA, in contrast with the traditional Landau approximation. Results for symmetric nuclear matter and pure neutron matter are presented using Landau parameters derived from finite-range interactions, both phenomenological and microscopic. We study the convergence of response functions as the number of Landau parameters is increased. © 2014 IOP Publishing Ltd.