Research output: Contribution to journal › Article › peer-review
1.77 MB, PDF document
Journal | Physics Letters B |
---|---|
Date | Accepted/In press - 31 May 2016 |
Date | E-pub ahead of print - 2 Jun 2016 |
Date | Published (current) - 10 Aug 2016 |
Volume | 759 |
Number of pages | 7 |
Pages (from-to) | 417-423 |
Early online date | 2/06/16 |
Original language | English |
The levels in 26Na with single particle character have been observed for the first time using the d(25Na, pγ) reaction at 5 MeV/nucleon. The measured excitation energies and the deduced spectroscopic factors are in good overall agreement with (0+1)hω shell model calculations performed in a complete spsdfp basis and incorporating a reduction in the N=20 gap. Notably, the 1p3/2 neutron configuration was found to play an enhanced role in the structure of the low-lying negative parity states in 26Na, compared to the isotone 28Al. Thus, the lowering of the 1p3/2 orbital relative to the 0f7/2 occurring in the neighbouring Z=10 and 12 nuclei - 25,27Ne and 27,29Mg - is seen also to occur at Z=11 and further strengthens the constraints on the modelling of the transition into the island of inversion.
Find related publications, people, projects, datasets and more using interactive charts.