First direct observation of two protons in the decay of $^{45}$Fe with a TPC

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dc.creatorGiovinazzo, J.
dc.creatorBlank, B.
dc.creatorBorcea, C.
dc.creatorCanchel, G.
dc.creatorDemonchy, C. E.
dc.creatorSantos, F. de Oliveira
dc.creatorDossat, C.
dc.creatorGrevy, S.
dc.creatorHay, L.
dc.creatorHuikari, J.
dc.creatorLeblanc, S.
dc.creatorMatea, I.
dc.creatorPedroza, J. -L.
dc.creatorPerrot, L.
dc.creatorPibernat, J.
dc.creatorSerani, L.
dc.creatorStodel, C.
dc.creatorThomas, J. -C.
dc.date2007-03-05
dc.date.accessioned2026-07-07T11:03:22Z
dc.date.available2026-07-07T11:03:22Z
dc.descriptionThe decay of the ground-state two-proton emitter 45Fe was studied with a time-projection chamber and the emission of two protons was unambiguously identified. The total decay energy and the half-life measured in this work agree with the results from previous experiments. The present result constitutes the first direct observation of the individual protons in the two-proton decay of a long-lived ground-state emitter. In parallel, we identified for the first time directly two-proton emission from 43Cr, a known beta-delayed two-proton emitter. The technique developped in the present work opens the way to a detailed study of the mechanism of ground-state as well as beta-delayed two-proton radioactivity.
dc.description4 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/nucl-ex/0703011
dc.identifierhttp://arxiv.org/abs/nucl-ex/0703011
dc.identifierPhys.Rev.Lett.99:102501,2007
dc.identifierdoi:10.1103/PhysRevLett.99.102501
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/188568
dc.subjectNuclear Experiment
dc.titleFirst direct observation of two protons in the decay of $^{45}$Fe with a TPC
dc.typetext

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