%0 Journal Article
%T Neutron Skin Effects in Mirror Energy Differences: The Case of Mg-23-Na-23
%A Boso, A. et al
%A Gadea, A.
%A Huyuk, T.
%J Physical Review Letters
%D 2018
%V 121
%N 3
%I Amer Physical Soc
%@ 0031-9007
%G English
%F Boso_etal2018
%O WOS:000439286800004
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3668), last updated on Wed, 01 Aug 2018 17:10:12 +0000
%X Energy differences between analogue states in the T = 1/2 Mg-23-Na-23 mirror nuclei have been measured along the rotational yrast bands. This allows us to search for effects arising from isospin-symmetrybreaking interactions (ISB) and/or shape changes. Data are interpreted in the shell model framework following the method successfully applied to nuclei in the f(7/2) shell. It is shown that the introduction of a schematic ISB interaction of the same type of that used in the f(7/2) shell is needed to reproduce the data. An alternative novel description, applied here for the first time, relies on the use of an effective interaction deduced from a realistic charge-dependent chiral nucleon-nucleon potential. This analysis provides two important results: (i) The mirror energy differences give direct insight into the nuclear skin; (ii) the skin changes along the rotational bands are strongly correlated with the difference between the neutron and proton occupations of the s(1/2) "halo" orbit.
%R 10.1103/PhysRevLett.121.032502
%U https://doi.org/10.1103/PhysRevLett.121.032502
%P 032502-5pp