First observation of 54Zn and its decay by two-proton emission

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dc.creatorBlank, B.
dc.creatorBey, A.
dc.creatorCanchel, G.
dc.creatorDossat, C.
dc.creatorFleury, A.
dc.creatorGiovinazzo, J.
dc.creatorMatea, I.
dc.creatorAdimi, N.
dc.creatorDe Oliveira, F.
dc.creatorStefan, I.
dc.creatorGeorgiev, G.
dc.creatorGrevy, S.
dc.creatorThomas, J. C.
dc.creatorBorcea, C.
dc.creatorCortina, D.
dc.creatorCaamano, M.
dc.creatorStanoiu, M.
dc.creatorAksouh, F.
dc.creatorBrown, B. A.
dc.creatorBarker, F. C.
dc.creatorRichter, W. A.
dc.date2005-05-13
dc.date.accessioned2026-07-07T10:30:30Z
dc.date.available2026-07-07T10:30:30Z
dc.descriptionThe nucleus 54Zn has been observed for the first time in an experiment at the SISSI/LISE3 facility of GANIL in the quasi-fragmentation of a 58Ni beam at 74.5 MeV/nucleon in a natNi target. The fragments were analysed by means of the ALPHA-LISE3 separator and implanted in a silicon-strip detector where correlations in space and time between implantation and subsequent decay events allowed us to generate almost background free decay spectra for about 25 different nuclei at the same time. Eight 54Zn implantation events were observed. From the correlated decay events, the half-life of 54Zn is determined to be 3.2 +1.8/-0.8 ms. Seven of the eight implantations are followed by two-proton emission with a decay energy of 1.48(2) MeV. The decay energy and the partial half-life are compared to model predictions and allow for a test of these two-proton decay models.
dc.description4 pages, 4 figures, accepted for publication in PRL
dc.identifierhttps://arxiv.org/abs/nucl-ex/0505016
dc.identifierhttp://arxiv.org/abs/nucl-ex/0505016
dc.identifierPhys.Rev.Lett.94:232501,2005
dc.identifierdoi:10.1103/PhysRevLett.94.232501
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/178149
dc.subjectNuclear Experiment
dc.titleFirst observation of 54Zn and its decay by two-proton emission
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