Detailed study of the decay of \(^{21}\)Mg

Detailed study of the decay of \(^{21}\)Mg

Beta-delayed proton and gamma emission in the decay of \(^{21}\)Mg has been measured at ISOLDE, CERN with the ISOLDE Decay Station (IDS) set-up. The existing decay scheme is updated, in particular what concerns proton transitions to excited states in \(^{20}\)Ne. Signatures of interference in severa...

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Veröffentlicht in:arXiv.org 2024-07
Hauptverfasser: Jensen, E A M, Nielsen, S T, Andreyev, A, Borge, M J G, Cederkäll, J, Fraile, L M, Fynbo, H O U, Harkness-Brennan, L J, Jonson, B, Judson, D S, Kirsebom, O S, Lică, R, Lund, M V, Madurga, M, Marginean, N, Mihai, C, Page, R D, Perea, Á, Riisager, K, Tengblad, O
Format: Artikel
Sprache:eng
Schlagworte:
Beta decay
Excitation
Excitation spectra
Gamma emission
Physics - Nuclear Experiment
Protons
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Zusammenfassung:Beta-delayed proton and gamma emission in the decay of \(^{21}\)Mg has been measured at ISOLDE, CERN with the ISOLDE Decay Station (IDS) set-up. The existing decay scheme is updated, in particular what concerns proton transitions to excited states in \(^{20}\)Ne. Signatures of interference in several parts of the spectrum are used to settle spin and parity assignments to highly excited states in \(^{21}\)Na. The previously reported \(\beta\)p\(\alpha\) branch is confirmed. A half-life of 120.5(4) ms is extracted for \(^{21}\)Mg. The revised decay scheme is employed to test mirror symmetry in the decay and to extract the beta strength distribution of \(^{21}\)Mg that is compared with theory.
ISSN:2331-8422
DOI:10.48550/arxiv.2405.01276