Mass measurements beyond the major r-process waiting point 80Zn

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dc.creatorBaruah, S.
dc.creatorAudi, G.
dc.creatorBlaum, K.
dc.creatorDworschak, M.
dc.creatorGeorge, S.
dc.creatorGuenaut, C.
dc.creatorHager, U.
dc.creatorHerfurth, F.
dc.creatorHerlert, A.
dc.creatorKellerbauer, A.
dc.creatorKluge, H. -J.
dc.creatorLunney, D.
dc.creatorSchatz, H.
dc.creatorSchweikhard, L.
dc.creatorYazidjian, C.
dc.date2008-11-14
dc.date.accessioned2026-07-07T12:28:48Z
dc.date.available2026-07-07T12:28:48Z
dc.descriptionHigh-precision mass measurements on neutron-rich zinc isotopes 71m,72-81Zn have been performed with the Penning trap mass spectrometer ISOLTRAP. For the first time the mass of 81Zn has been experimentally determined. This makes 80Zn the first of the few major waiting points along the path of the astrophysical rapid neutron capture process where neutron separation energy and neutron capture Q-value are determined experimentally. As a consequence, the astrophysical conditions required for this waiting point and its associated abundance signatures to occur in r-process models can now be mapped precisely. The measurements also confirm the robustness of the N = 50 shell closure for Z = 30 farther from stability.
dc.description4 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/0811.2294
dc.identifierhttp://arxiv.org/abs/0811.2294
dc.identifierPhys.Rev.Lett.101:262501,2008
dc.identifierdoi:10.1103/PhysRevLett.101.262501
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/215662
dc.subjectNuclear Experiment
dc.titleMass measurements beyond the major r-process waiting point 80Zn
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