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dc.contributor.authorSauerwein, A.
dc.contributor.authorBecker, H. -W.
dc.contributor.authorDombrowski, H.
dc.contributor.authorElvers, M.
dc.contributor.authorEndres, J.
dc.contributor.authorGiesen, U.
dc.contributor.authorHasper, J.
dc.contributor.authorHennig, A.
dc.contributor.authorNetterdon, L.
dc.contributor.authorRauscher, T.
dc.contributor.authorRogalla, D.
dc.contributor.authorZell, K. O.
dc.contributor.authorZilges, A.
dc.date.accessioned2013-04-24T14:00:08Z
dc.date.available2013-04-24T14:00:08Z
dc.date.issued2011-10-19
dc.identifier.citationSauerwein , A , Becker , H -W , Dombrowski , H , Elvers , M , Endres , J , Giesen , U , Hasper , J , Hennig , A , Netterdon , L , Rauscher , T , Rogalla , D , Zell , K O & Zilges , A 2011 , ' Determination of Pr-141(alpha, n)Pm-144 cross sections at energies of relevance for the astrophysical p process using the gamma gamma coincidence method ' Physical Review C , vol. 84 , no. 4 , 045808 . https://doi.org/10.1103/PhysRevC.84.045808
dc.identifier.issn2469-9985
dc.identifier.otherPURE: 1614331
dc.identifier.otherPURE UUID: b339298e-14c8-415f-b128-130c73fcbba1
dc.identifier.otherWOS: 000296518700009
dc.identifier.otherScopus: 80055031311
dc.identifier.urihttp://hdl.handle.net/2299/10498
dc.description.abstractThe reaction Pr-141(alpha, n)Pm-144 was investigated between E-alpha = 11 MeV and 15 MeV with the activation method using the gamma gamma coincidence method with a segmented clover-type high-purity Germanium (HPGe) detector. Measurements with four other HPGe detectors were additionally made. The comparison proves that the gamma gamma coincidence method is an excellent tool to investigate cross sections down to the microbarn range. The (alpha, n) reaction at low energy is especially suited to test alpha + nucleus optical-model potentials for application in the astrophysical p process. The experimentally determined cross sections were compared to Hauser-Feshbach statistical model calculations using different optical potentials and generally an unsatisfactory reproduction of the data was found. A local potential was constructed to improve the description of the data. The consequences of applying the same potential to calculate astrophysical (gamma, alpha) rates for Pm-145 and Gd-148 were explored. In summary, the data and further results underline the problems in global predictions of alpha + nucleus optical potentials at astrophysically relevant energies.en
dc.format.extent11
dc.language.isoeng
dc.relation.ispartofPhysical Review C
dc.rights/dk/atira/pure/core/openaccesspermission/open
dc.subjectRAY SPECTROMETRY
dc.subjectNUCLEAR-PHYSICS
dc.subjectSCATTERING
dc.subjectMODEL
dc.subjectR-PROCESS
dc.subjectSM-146 PRODUCTION
dc.subjectPROCESS NUCLEOSYNTHESIS
dc.subjectIA SUPERNOVAE
dc.subjectMASSIVE STARS
dc.subjectREACTION-RATES
dc.titleDetermination of Pr-141(alpha, n)Pm-144 cross sections at energies of relevance for the astrophysical p process using the gamma gamma coincidence methoden
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionScience & Technology Research Institute
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Physics, Astronomy and Mathematics
dc.description.versiontypeFinal Accepted Version
rioxxterms.versionAM
rioxxterms.versionofrecordhttps://doi.org/10.1103/PhysRevC.84.045808
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeopenAccess


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