Title: Measurement of the 154Gd(n, γ) cross section and its astrophysical implications
Authors: MAZZONE A.CRISTALLO S.ABERLE O.ALAERTS GERYALCAYNE V.AMADUCCI SANDRZEJEWSKI J.AUDOUIN L.BABIANO-SUAREZ V.BACAK M.BARBAGALLO MBECARES V.BECVAR F.BELLIA G.BERTHOUMIEUX E.BILLOWES J.BOSNAR D.BROWN SBUSSO M.CAAMANO M.CABALLERO L.CALVIANI M.CALVIÑO F.CANO-OTT D.CASANOVAS A.CASTELLUCCIO D. M.CERUTTI F.CHEN Y. H.CHIAVERI E.CLAI G.COLONNA N.CORTÉS G. P.CORTES-GIRALDO M. A.COSENTINO LUIGIDAMONE L.DIAKAKI M.DIETZ M.DOMINGO-PARDO C.DRESSLER R.DUPONT E.DURAN I.ELME Z.FERNÁNDEZ-DOMÍNGEZ B.FERRARI A.GONCALVES I. F.FINOCCHIARO PAOLOFURMAN V.GARG R.GAWLIK A.GILARDONI S.GLODARIU T.GÖBEL K.GONZÁLEZ-ROMERO E.GUERRERO C.GUNSING F.HEINITZ S.HEYSE JANJENKINS D. G.JERICHA E.KADI Y.KAPPELER F.KIMURA A.KIVEL N.KOKKORIS M.KOPATCH Y.KOPECKY STEFANKRTICKA M.KURTULGIL D.LADARESCU I.LEDERER-WOODS CLAUDIALERENDEGUI-MARCO J.LO MEO S.LONSDALE S.MACINA D.MANNA AMARTÍNEZ T.MASI A.MASSIMI C.MASTINU P.MASTROMARCO M.MATTEUCCI F.MAUGERI EMILIOMENDOZA E.MENGONI A.MICHALOPOULOU V.MILAZZO P.M.MINGRONE F.MUCCIOLA RICCARDOMUSUMARRA A.NEGRET A.NOLTE R.OGÁLLAR F.OPREA A.PATRONIS N.PAVLIK A.PERKOWSKI J.PIERSANTI L.PORRAS I.PRAENA J.QUESADA J.RADECK D.RAMOS DOVAL D.REIFARTH R.ROCHMAN D.RUBBIA C.SABATE-GILARTE MSAXENA A.SCHILLEBEECKX PETERSCHUMANN D.SMITH A. G.SOSNIN N. V.STAMATOPOULOS A.TAGLIENTE G.TAIN J.L.TALIP Z.TARIFENO-SALDIVIA A.TASSAN-GOT L.TORRES-SÁNCHEZ P.TSINGANIS A.ULRICH J.URLASS S.VALENTA S.VANNINI G.VARIALE V.VAZ P.VENTURA A.VESCOVI D.VLACHOUDIS V.VLASTOU R.WALLNER A.WOODS P. J.WYNANTS RUUDWRIGHT T. J.ZUGEC P.
Citation: PHYSICS LETTERS B vol. 804 p. 135405
Publisher: ELSEVIER SCIENCE BV
Publication Year: 2020
JRC N°: JRC120825
ISSN: 0370-2693 (online)
URI: https://publications.jrc.ec.europa.eu/repository/handle/JRC120825
DOI: 10.1016/j.physletb.2020.135405
Type: Articles in periodicals and books
Abstract: The neutron capture cross section of 154Gd was measured from 1 eV to 300 keV in the experimental area located 185 m from the CERN n_TOF neutron spallation source, using a metallic sample of gadolinium, enriched to 67% in 154Gd. The capture measurement, performed with four C6D6 scintillation detectors, has been complemented by a transmission measurement performed at the GELINA time-of-flight facility (JRC-Geel), thus minimising the uncertainty related to sample composition. An accurate Maxwellian averaged capture cross section (MACS) was deduced over the temperature range of interest for s process nucleosynthesis modeling. We report a value of 880(50) mb for the MACS at kT = 30 keV, significantly lower compared to values available in literature. The new adopted 154Gd(n,γ) cross section reduces the discrepancy between observed and calculated solar s-only isotopic abundances predicted by s-process nucleosynthesis models.
JRC Directorate:Nuclear Safety and Security

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