GIOVINAZZO, J.; ROGER, T.; BLANK, B.; RUDOLPH, D.; BROWN, B.A.; ALVAREZ-POL, H.; AROKIA RAJ, A.; ASCHER, P.; CAAMAÑO-FRESCO, M.; CACERES, L.; COX, D.M.; FERNÁNDEZ-DOMÍNGUEZ, B.; LOIS-FUENTES, J.; GERBAUX, M.; GRÉVY, S.; GRINYER, G.F.; KAMALOU, O.; MAUSS, B.; MENTANA, A.; PANCIN, J.; PIBERNAT, J.; PIOT, J.; SORLIN, O.; STODEL, C.; THOMAS, J.C.; VERSTEEGEN, M.

doi:10.1038/s41467-022-33708-9

Métadonnées

Afficher la notice complète

Licence d’utilisation du document

GIOVINAZZO, J.
Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]

ROGER, T.
Grand Accélérateur National d'Ions Lourds [GANIL]

BLANK, B.
Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]

Langue

Article de revue

Ce document a été publié dans

Nature Commun.. 2021, vol. 13, n° 1, p. 5982

Résumé en anglais

Proton radioactivity was discovered exactly 50 years ago. First, this nuclear decay mode sets the limit of existence on the nuclear landscape on the neutron-deficient side. Second, it comprises fundamental aspects of both quantum tunnelling as well as the coupling of (quasi) bound quantum states with the continuum in mesoscopic systems such as the atomic nucleus. Theoretical approaches can start either from bound-state nuclear shell-model theory or from resonance scattering. Thus, proton-radioactivity guides merging these types of theoretical approaches, which is of broader relevance for any few-body quantum system. Here, we report experimental measurements of proton-emission branches from an isomeric state in 54mNi, which were visualized in four dimensions in a newly developed detector. We show that these decays, which carry an unusually high angular momentum, ℓ = 5 and ℓ = 7, respectively, can be approximated theoretically with a potential model for the proton barrier penetration and a shell-model calculation for the overlap of the initial and final wave functions.< Réduire

Métadonnées

Licence d’utilisation du document

Author Correction: 4D-imaging of drip-line radioactivity by detecting proton emission from $^{54m}$Ni pictured with ACTAR TPC [doi: 10.1038/s41467-021-24920-0]

Langue

Ce document a été publié dans

Résumé en anglais

DOI

Origine

Unités de recherche