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dc.contributor.authorDillmann, I.
dc.contributor.authorHeil, M.
dc.contributor.authorKappeler, F.
dc.contributor.authorRauscher, T.
dc.contributor.authorThielemann, Friedrich-Karl
dc.date.accessioned2013-04-12T11:47:24Z
dc.date.available2013-04-12T11:47:24Z
dc.date.issued2006-01
dc.identifier.citationDillmann , I , Heil , M , Kappeler , F , Rauscher , T & Thielemann , F-K 2006 , ' Experimental (n,gamma) cross sections of the p-process nuclei Se-74 and Sr-84 ' , Physical Review C , vol. 73 , no. 1 , 015803 . https://doi.org/10.1103/PhysRevC.73.015803
dc.identifier.issn2469-9985
dc.identifier.otherPURE: 1627682
dc.identifier.otherPURE UUID: fe70a315-7451-4490-8159-a50f005eb61e
dc.identifier.otherWOS: 000235009800064
dc.identifier.otherScopus: 32644481384
dc.identifier.urihttp://hdl.handle.net/2299/10396
dc.description.abstractThe nucleosynthesis of elements beyond iron is dominated by the s and r processes. However, a small amount of stable isotopes on the proton-rich side cannot be made by neutron capture and are thought to be produced by photodisintegration reactions on existing seed nuclei in the so-called "p process." So far most of the p-process reactions are not yet accessible by experimental techniques and have to be inferred from statistical Hauser-Feshbach model calculations. The parametrization of these models has to be constrained by measurements on stable proton-rich nuclei. A series of (n,gamma) activation measurements, related by detailed balance to the respective photodisintegrations, were carried out at the Karlsruhe Van de Graaff accelerator using the Li-7(p,n)Be-7 source for simulating a Maxwellian neutron distribution of kT = 25 keV. First results for the experimental (n,gamma) cross sections of the light p nuclei Se-74 and Sr-84 are reported. These experimental values were used for an extrapolation to the Maxwellian averaged cross section at 30 keV, (30), yielding 271 +/- 15 mb for Se-74, and 300 +/- 17 mb for the total capture cross section of Sr-84. The partial cross section to the isomer in Sr-85 was found to be 190 +/- 10 mb.en
dc.format.extent10
dc.language.isoeng
dc.relation.ispartofPhysical Review C
dc.subjectGAMMA-PROCESS
dc.subjectSTARS
dc.subjectISOTOPES
dc.subjectSTATISTICAL-MODEL CALCULATIONS
dc.subjectENERGIES
dc.subjectRELEVANT
dc.subjectELEMENTS
dc.subjectASTROPHYSICAL REACTION-RATES
dc.subjectNUCLEOSYNTHESIS
dc.titleExperimental (n,gamma) cross sections of the p-process nuclei Se-74 and Sr-84en
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionScience & Technology Research Institute
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
rioxxterms.versionAM
rioxxterms.versionofrecordhttps://doi.org/10.1103/PhysRevC.73.015803
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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