학술논문
First 80Se(n,γ) cross section measurement with high resolution in the full stellar energy range 1 eV - 100 keV and its astrophysical implications for the s-process
Document Type
article
Author
Babiano-Suarez V.; Balibrea-Correa J.; Caballero-Ontanaya L.; Domingo-Pardo C.; Ladarescu I.; Lerendegui-Marco J.; Tain J. L.; Calviño F.; Casanovas A.; Tarifeño-Saldivia A.; Guerrero C.; Aberle O.; Alcayne V.; Amaducci S.; Andrzejewski J.; Audouin L.; Bacak M.; Barbagallo M.; Bennett S.; Berthoumieux E.; Billowes J.; Bosnar D.; Brown A.; Busso M.; Caamaño M.; Calviani M.; Cano-Ott D.; Cerutti F.; Chiaveri E.; Colonna N.; Cortés G.; CortésGiraldo M. A.; Cosentino L.; Cristallo S.; Damone L. A.; Davies P. J.; Diakaki M.; Dietz M.; Dressler R.; Ducasse Q.; Dupont E.; Durán I.; Eleme Z.; Fernández-Domínguez B.; Ferrari A.; Finocchiaro P.; Furman V.; Göbel K.; Garg R.; Gawlik-Ramięga A.; Gilardoni S.; Gonçalves I. F.; González-Romero E.; Gunsing F.; Harada H.; Heinitz S.; Heyse J.; Jenkins D. G.; Junghans A.; Käppeler F.; Kadi Y.; Kimura A.; Knapová I.; Kokkoris M.; Kopatch Y.; Krtička M.; Kurtulgil D.; Lederer-Woods C.; Leeb H.; Lonsdale S. J.; Macina D.; Manna A.; Martínez T.; Masi A.; Massimi C.; Mastinu P.; Mastromarco M.; Maugeri E. A.; Mazzone A.; Mendoza E.; Mengoni A.; Michalopoulou V.; Milazzo P. M.; Mingrone F.; Moreno-Soto J.; Musumarra A.; Negret A.; Nolte R.; Ogállar F.; Oprea A.; Patronis N.; Pavlik A.; Perkowski J.; Persanti L.; Petrone C.; Pirovano E.; Porras I.; Praena J.; Quesada J. M.; Ramos-Doval D.; Rauscher T.; Reifarth R.; Rochman D.; Romanets Y.; Rubbia C.; Sabaté-Gilarte M.; Saxena A.; Schillebeeckx P.; Schumann D.; Sekhar A.; Smith A. G.; Sosnin N. V.; Sprung P.; Stamatopoulos A.; Tagliente G.; Tassan-Got L.; Thomas Th.; 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.; Wright T.; Žugec P.
Source
EPJ Web of Conferences, Vol 260, p 11026 (2022)
Subject
Language
English
ISSN
2100-014X
Abstract
Most elements heavier than iron have been generated in the stellar media by means of neutron capture reactions, approximately half are produced by the slow neutron capture or s-process. Radiative neutron capture cross section measurements are of fundamental importance for the study of this mechanism. In this contribution we present a brief summary on the measurement and results for the 80Se(n,γ) cross-section. The experiment was carried out at CERN n_TOF EAR1 via the time of flight (ToF) technique, using four C6D6 scintillation detectors with very fast response. More than a hundred new resonances have been analyzed for the first time with a high accuracy. The MACS obtained at kT = 8 keV is 36% smaller than the recommended value in KADo-NiS. Some of the astrophysical implications of this result are elucidated in this contribution.