%0 Journal Article
%T Two-body contributions to the effective mass in nuclear effective interactions
%A Davesne, D.
%A Navarro, J.
%A Meyer, J.
%A Bennaceur, K.
%A Pastore, A.
%J Physical Review C
%D 2018
%V 97
%N 4
%I Amer Physical Soc
%@ 2469-9985
%G English
%F Davesne_etal2018
%O WOS:000429456600002
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3554), last updated on Mon, 23 Apr 2018 10:30:17 +0000
%X Starting from general expressions of well-chosen symmetric nuclear matter quantities derived for both zero-and finite-range effective theories, we derive some universal relations between them. We first showthat, independently of the range, the two-body contribution is enough to describe correctly the saturation mechanism but gives an effective mass value around m(*)/m similar or equal to 0.4 when the other properties of the saturation point are set near their generally accepted values. Then, we show that a more elaborated interaction (for instance, an effective two-body density-dependent term on top of the pure two-body term) is needed to reach the accepted value m(*)/m similar or equal to 0.7-0.8.
%R 10.1103/PhysRevC.97.044304
%U http://arxiv.org/abs/1712.03003
%U https://doi.org/10.1103/PhysRevC.97.044304
%P 044304-7pp