Measurement of the 72Ge(n; γ ) cross section over a wide neutron energy range at the CERN n_TOF facility

The 72Ge(n; γ ) cross section was measured up to neutron energies of 300 keV at the neutron time-of-flight facility n TOF (CERN), for the first time covering energies relevant to heavy element synthesis in stars. The measurement was performed at the high resolution beamline EAR-1, using an isotopically enriched 72GeO2 sample. The prompt-capture γ rays were detected with four liquid scintillation detectors, optimised for low neutron sensitivity. We determined resonance capture kernels up to neutron energies of 43 keV, and averaged cross sections from 43 to 300 keV. Maxwellian averaged cross sections were calculated from kT = 5 to 100 keV. The new results significantly reduce uncertainties of abundances produced in the slow neutron capture process in massive stars.

DIETZ M.;  LEDERER-WOODS Claudia;  TATTERSALL A.;  BATTINO U.;  GUNSING F.;  HEINITZ S.;  KRTICKA M.;  LERENDEGUI-MARCO J.;  REIFARTH R.;  VALENTA S.;  ABERLE O.;  AMADUCCI S.;  ANDRZEJEWSKI J.;  AUDOUIN L.;  BACAK M.;  BALIBREA J.;  BARBAGALLO M;  BECVAR F.;  BERTHOUMIEUX E.;  BILLOWES J.;  BOSNAR D.;  BROWN S;  CAAMANO M.;  CALVIÑO F.;  CALVIANI M.;  CANO-OTT D.;  CARDELLA R.;  CASANOVAS A.;  CERUTTI F.;  CHEN Y. H.;  CHIAVERI E.;  COLONNA N.;  CORTÉS G. P.;  CORTES-GIRALDO M. A.;  COSENTINO Luigi;  DAMONE L.;  DIAKAKI M.;  DOMINGO-PARDO C.;  DRESSLER R.;  DUPONT E.;  DURAN I.;  FERNÁNDEZ-DOMÍNGEZ B.;  FERRARI A.;  FERREIRA P.;  FINOCCHIARO Paolo;  FURMAN V.;  GÖBEL K.;  GARCIA A. R.;  GAWLIK A.;  GILARDONI S.;  GLODARIU T.;  GONCALVES I. F.;  GONZÁLEZ-ROMERO E.;  GRIESMAYER E.;  GUERRERO C.;  HARADA H.;  HEYSE Jan;  JENKINS D. G.;  JERICHA E.;  KAPPELER F.;  KADI Y.;  KAHL D;  KALAMARA A.;  KAVRIGIN P.;  KIMURA A.;  KIVEL N.;  KOKKORIS M.;  KURTULGIL D.;  LEAL-CIDONCHA E.;  LEEB H.;  LO MEO S.;  LONSDALE S.;  MACINA D.;  MANNA A;  MARGANIEC J.;  MARTÍNEZ T.;  MASI A.;  MASSIMI C.;  MASTINU P.;  MASTROMARCO M.;  MAUGERI E.;  MAZZONE A.;  MENDOZA E.;  MENGONI A.;  MILAZZO P.M.;  MINGRONE F.;  MUSUMARRA A.;  NEGRET A.;  NOLTE R.;  OPREA A.;  PATRONIS N.;  PAVLIK A.;  PERKOWSKI J.;  PORRAS I.;  PRAENA J.;  QUESADA J.;  RADECK D.;  RAUSCHER T.;  RUBBIA C.;  RYAN J.;  SABATE-GILARTE M;  SAXENA A.;  SCHILLEBEECKX Peter;  SCHUMANN D.;  SEDYSHEV P.;  SMITH A. G.;  SOSNIN N. V.;  STAMATOPOULOS A.;  TAGLIENTE G.;  TAIN J.L.;  TARIFENO-SALDIVIA A.;  TASSAN-GOT L.;  VANNINI G.;  VARIALE V.;  VAZ P.;  VENTURA A.;  VLACHOUDIS V.;  VLASTOU R.;  WALLNER A.;  WARREN S.;  WEISS C.;  WOODS P. J.;  WRIGHT T. J.;  ZUGEC P.; 

2021-09-09

AMER PHYSICAL SOC

JRC121056

2469-9985 (online),   

https://journals.aps.org/prc/abstract/10.1103/PhysRevC.103.045809,    https://publications.jrc.ec.europa.eu/repository/handle/JRC121056,   

10.1103/PhysRevC.103.045809 (online),