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Quadrupole moments of odd-A ⁵³⁻⁶³Mn: Onset of collectivity towards N = 40

Babcock, Carla ; Heylen, Hanne ; Bissell, Mark L. ; Blaum, Klaus ; Campbell, Paul ; Cheal, Bradley ; Fedorov, D.V. ; Garcia Ruiz, Ronald Fernando ; Geithner, Wolfgang ; Gins, Wouter ; Day Goodacre, Thomas ; Grob, L.K. ; Kowalska, Magdalena A. ; Lenzi, Silvia Monica ; Maass, Bernhard ; Malbrunot-Ettenauer, S. ; Marsh, Bruce Allan ; Neugart, Rainer ; Neyens, Gerda ; Nörtershäuser, Wilfried ; Otsuka, Takaharu ; Rossel, Ralf Erik ; Rothe, Sebastian ; Sánchez, Rodolfo M. ; Tsunoda, Yusuke ; Wraith, Calvin ; Xie, Liang ; Yang, Xiaofei (2022):
Quadrupole moments of odd-A ⁵³⁻⁶³Mn: Onset of collectivity towards N = 40. (Publisher's Version)
In: Physics Letters B, 760, pp. 387-392. Elsevier, ISSN 0031-9163, e-ISSN 1873-2445,
DOI: 10.26083/tuprints-00012666,
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Item Type: Article
Status: Publisher's Version
Title: Quadrupole moments of odd-A ⁵³⁻⁶³Mn: Onset of collectivity towards N = 40
Language: English
Abstract:

The spectroscopic quadrupole moments of the odd–even Mn isotopes between N=28 and N=38 have been measured using bunched-beam collinear laser spectroscopy at ISOLDE, CERN. In order to increase sensitivity to the quadrupole interaction, the measurements have been done using a transition in the ion rather than in the atom, with the additional advantage of better spectroscopic efficiency. Since the chosen transition is from a metastable state, optical pumping in ISOLDE’s cooler and buncher (ISCOOL) was used to populate this state. The extracted quadrupole moments are compared to large-scale shell model predictions using three effective interactions, GXPF1A, LNPS and modified A3DA. The inclusion of both the 1νg9/2and 2νd5/2orbitals in the model space is shown to be necessary to reproduce the observed increase in the quadrupole deformation from N=36 onwards. Specifically, the inclusion of the 2νd5/2orbital induces an increase in neutron and proton excitations across the reduced gaps at N=40and Z=28, leading to an increase in deformation above N=36.

Journal or Publication Title: Physics Letters B
Volume of the journal: 760
Publisher: Elsevier
Classification DDC: 500 Naturwissenschaften und Mathematik > 530 Physik
Divisions: 05 Department of Physics > Institute of Nuclear Physics
Date Deposited: 04 Mar 2022 13:14
Last Modified: 04 Mar 2022 13:15
DOI: 10.26083/tuprints-00012666
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-126661
Additional Information:

Keywords: Quadrupole moments; Laser spectroscopy; Manganese; Deformation; Optical pumping

URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/12666
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