TY  - JOUR
AU  - Boso, A. et al
AU  - Gadea, A.
AU  - Huyuk, T.
PY  - 2018
DA  - 2018//
TI  - Neutron Skin Effects in Mirror Energy Differences: The Case of Mg-23-Na-23
T2  - Phys. Rev. Lett.
JO  - Physical Review Letters
SP  - 032502
EP  - 5pp
VL  - 121
IS  - 3
PB  - Amer Physical Soc
AB  - 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.
SN  - 0031-9007
UR  - https://doi.org/10.1103/PhysRevLett.121.032502
DO  - 10.1103/PhysRevLett.121.032502
LA  - English
N1  - WOS:000439286800004
ID  - Boso_etal2018
ER  -