Title: Neutron capture cross section of unstable 63Ni: implications for stellar nucleosynthesis
Authors: LEDERER C.MASSIMI C.ALTSTADT S.ANDRZEJEWSKI J.AUDOUIN L.BARBAGALLO M.BECARES V.BECVAR F.BELLONI F.BERTHOUMIEUX E.BILLOWES J.BOCCONE V.BOSNAR D.BRUGGER M.CALVIANI M.CALVINO F.CANO-OTT D.CARRAPICO C.CERUTTI F.CHIAVERI E.CHIN M.COLONNA N.CORTES G.CORTES-GIRALDO M. A.DIAKAKI M.DOMINGO-PARDO C.DURAN I.DRESSLER R.DZYSIUK N.ELEFTHERIADIS C.FERRARI A.FRAVAL K.GANESAN S.GARCIA A. R.GIUBRONE G.GOMEZ-HORNILLOS M. B.Goncalves I. F.GONZALEZ-ROMERO E.GRIESMAYER E.GUERRERO C.GUNSING F.GURUSAMY P.JENKINS D. G.JERICHA E.KADI Y.KÄPPELER F.KARADIMOS D.KIVEL NikoKOEHLER P.KOKKORIS M.KORSCHINEK G.KRTICKA M.KROLL J.LANGER C.LEEB H.LEONG L. S.LOSITO R.MANOUSOS AMARGANIEC J.MARTINEZ T.MASTINU P.MASTROMARCO M.MEAZE M.MENDOZA E.MENGONI A.MILAZZO P. M.MINGRONE F.MIREA M.MONDELAERS WillyPARADELA C.PAVLIK A.PERKOWSKI J.PIGNATARI M.PLOMPEN ArjanPRAENA J.QUESADA J.RAUSCHER T.REIFARTH R.RIEGO A.ROMAN F.RUBBIA C.SARMENTO R.SCHILLEBEECKX PeterSCHMIDT S.SCHUMANN D.TAGLIENTE G.TAIN J.TARRIO D.TASSAN-GOT L.TSINGANIS A.VALENTA S.VANNINI G.VARIALE V.VAZ P.VENTURA A.VERSACI R.VERMEULEN M.VLACHOUDIS V.VLASTOU R.WALLNER A.WARE T.WEIGAND M.WEISS C.WRIGHT T. J.ZUGEC P.
Citation: PHYSICAL REVIEW LETTERS vol. 110 no. 2 p. 022501 [5 pages]
Publisher: AMER PHYSICAL SOC
Publication Year: 2013
JRC N°: JRC77105
ISSN: 0031-9007
URI: http://prl.aps.org/abstract/PRL/v110/i2/e022501
http://publications.jrc.ec.europa.eu/repository/handle/JRC77105
DOI: 10.1103/PhysRevLett.110.022501
Type: Articles in periodicals and books
Abstract: The 63Ni (n, gamma) cross section has been measured for the first time at the neutron time-of-flight facility n_TOF at CERN from thermal neutron energies up to 200 keV. In total, capture kernels of 12 (new) resonances were determined. Maxwellian averaged cross sections were calculated for thermal energies from kT = 5-100 keV with uncertainties around 20%. Stellar model calculations for a 25M star show that the new data have a significant effect on the s-process production of 63Cu, 64Ni, and 64Zn in massive stars, allowing stronger constraints on the Cu yields from explosive nucleosynthesis in the subsequent supernova.
JRC Directorate:Health, Consumers and Reference Materials

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