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Competing particle–hole excitations in ³⁰Na: Constraining state-of-the-art effective interactions

Petri, Marina ; Fallon, Paul ; Macchiavelli, Augusto O. ; Heil, Sebastian ; Rodriguez-Vieitez, Elena ; Bazin, Daniel ; Campbell, Christopher M. ; Clark, Randall M. ; Cromaz, Mario ; Gade, Alexandra ; Glasmacher, Thomas ; Lee, I. Yang ; Malbrunot-Ettenauer, S. ; Paschalis, Stefanos ; Ratkiewicz, Andrew ; Terry, John R. ; Weisshaar, Dirk ; Wiedeking, Mathis (2022):
Competing particle–hole excitations in ³⁰Na: Constraining state-of-the-art effective interactions. (Publisher's Version)
In: Physics Letters B, 748, pp. 173-177. Elsevier, ISSN 0370-2693, e-ISSN 1873-2445,
DOI: 10.26083/tuprints-00012825,
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Item Type: Article
Origin: Secondary publication
Status: Publisher's Version
Title: Competing particle–hole excitations in ³⁰Na: Constraining state-of-the-art effective interactions
Language: English
Abstract:

The odd–odd nucleus ³⁰Na is studied via a one-proton, one-proton–one-neutron and one-neutron removal reaction using an intermediate-energy ³¹Mg, ³²Mg and ³¹Na radioactive ion beam, respectively. Combining high-resolution γ-ray spectroscopy with the selectivity of the three reaction mechanisms, we are able to distinguish multiple particle–hole configurations. Negative-parity states in ³⁰Na are observed for the first time, providing an important measure of the excitation of the 1p1h/3p3h configuration and hence the sd–pf shell gap. The extracted band structures and level energies serve as invaluable input for the theoretical refinement of the effective interactions used in this region.

Journal or Publication Title: Physics Letters B
Volume of the journal: 748
Publisher: Elsevier
Classification DDC: 500 Naturwissenschaften und Mathematik > 530 Physik
Divisions: 05 Department of Physics > Institute of Nuclear Physics
Date Deposited: 10 Mar 2022 13:12
Last Modified: 10 Mar 2022 13:13
DOI: 10.26083/tuprints-00012825
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-128256
Additional Information:

Keywords: “Island of Inversion”; Knockout reactions; Radioactive ion beams; Effective interaction; Particle–hole excitations; Negative parity

URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/12825
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