Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2006-07-28
Phys.Rev. C74 (2006) 044315
Physics
Nuclear Physics
Nuclear Theory
17 pages, 9 figures; Minor changes, references added; Accepted for publication in Phys.Rev.C
Scientific paper
10.1103/PhysRevC.74.044315
We study the effect of the splitting of neutron and proton effective masses with isospin asymmetry on the properties of the Skyrme energy density functional. We discuss the ability of the latter to predict observable of infinite matter and finite nuclei, paying particular attention to controlling the agreement with ab-initio predictions of the spin-isospin content of the nuclear equation of state, as well as diagnosing the onset of finite size instabilities, which we find to be of critical importance. We show that these various constraints cannot be simultaneously fulfilled by the standard Skyrme force, calling at least for an extension of its P-wave part.
Bennaceur Karim
Duguet Thomas
Lesinski Thomas
Meyer Johan
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