Neutron Skin Effects in Mirror Energy Differences : The Case of Mg 23 - Na 23
- Boso, A.
- Lenzi, S. M.
- Recchia, F.
- Bonnard, J.
- Zuker, A. P.
- Aydin, S.
- Bentley, M. A.
- Cederwall, B.
- Clement, E.
- De France, G.
- Di Nitto, A.
- Dijon, A.
- Doncel, M.
- Ghazi-Moradi, F.
- Gadea, A.
- Gottardo, A.
- Henry, T.
- Hüyük, T.
- Jaworski, G.
- John, P. R.
- Juhász, K.
- Kuti, I.
- Melon, B.
- Mengoni, D.
- Michelagnoli, C.
- Modamio, V.
- Napoli, D. R.
- Nyakó, B. M.
- Nyberg, J.
- Palacz, M.
- Timár, J.
- Valiente-Dobón, J. J.
DOIAbstract
Energy differences between analogue states in the T=1/2 Mg23-Na23 mirror nuclei have been measured along the rotational yrast bands. This allows us to search for effects arising from isospin-symmetry-breaking interactions (ISB) and/or shape changes. Data are interpreted in the shell model framework following the method successfully applied to nuclei in the f7/2 shell. It is shown that the introduction of a schematic ISB interaction of the same type of that used in the f7/2 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...
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