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Title Evidence for Increased neutron and proton excitations between $^{51-63}$Mn
Author(s) Babcock, C (CERN ; Liverpool U.) ; Heylen, H (Leuven U.) ; Billowes, J (Manchester U.) ; Bissell, M L (Leuven U.) ; Blaum, K (Heidelberg, Max Planck Inst.) ; Campbell, P (Manchester U.) ; Cheal, B (Liverpool U.) ; Garcia Ruiz, R F (Leuven U.) ; Geppert, C (Mainz U., Inst. Kernchem. ; Darmstadt, Tech. Hochsch.) ; Gins, W (Leuven U.) ; Kowalska, M (CERN) ; Kreim, K (Heidelberg, Max Planck Inst.) ; Lenzi, S M (INFN, Padua ; Padua U.) ; Moore, I D (Jyvaskyla U.) ; Neugart, R (Heidelberg, Max Planck Inst. ; Mainz U., Inst. Kernchem.) ; Neyens, G (Leuven U.) ; Nörtershäuser, W (Darmstadt, Tech. Hochsch.) ; Papuga, J (Leuven U.) ; Yordanov, D T (Heidelberg, Max Planck Inst.)
Publication 2015
Number of pages 5
In: Phys. Lett. B 750 (2015) 176-180
DOI 10.1016/j.physletb.2015.09.012
Subject category Nuclear Physics - Experiment
Abstract The hyperfine structures of the odd-even 51 − 63 Mn atoms ( N=26−38 ) were measured using bunched beam collinear laser spectroscopy at ISOLDE, CERN. The extracted spins and magnetic dipole moments have been compared to large-scale shell-model calculations using different model spaces and effective interactions. In the case of 61,63 Mn, the results show the increasing importance of neutron excitations across the N=40 subshell closure, and of proton excitations across the Z=28 shell gap. These measurements provide the first direct proof that proton and neutron excitations across shell gaps are playing an important role in the ground state wave functions of the neutron-rich Mn isotopes.
Copyright/License publication: © 2015-2024 The Author(s) (License: CC-BY-4.0), sponsored by SCOAP³

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