Título (n,cp) reactions study at the n_TOF facility at CERN: Results for the Cosmological Lithium problem
Autores Barbagallo M. , Aberle O. , Alcayne V. , Andrzejewski J. , Audouin L. , Bécares V. , Babiano-Suarez V. , Bacak M. , Benedikt Th. , Bennett S. , Berthoumieux E. , Billowes J. , Bosnar D. , Brown A. , Busso M. , Caamaño M. , Caballero-Ontanaya L. , Calviño F. , Calviani M. , Cano-Ott D. , Casanovas A. , Cerutti F. , Chiaveri E. , Colonna N. , Cortés G. , Cortés-Giraldo M.A. , Cosentino L. , Cristallo S. , Damone L.A. , Davies P.J. , Dietz M. , Domingo-Pardo C. , Dressler R. , Ducasse Q. , Dupont E. , Durán I. , Eleme Z. , Fernández-Domínguez B. , Ferrari A. , Finocchiaro P. , Furman V. , Göbel K. , Gawlik A. , Gilardoni S. , Gonçalves I.F. , González-Romero E. , Guerrero C. , Gunsing F. , Heinitz S. , Heyse J. , Jenkins D.G. , Junghans A. , Käppeler F. , Kadi Y. , Kimura A. , Knapova I. , Kokkoris M. , Kopatch Y. , Krticka M. , Kurtulgil D. , Ladarescu I. , Lederer-Woods C. , 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, JAVIER, Musumarra A. , Negret A. , 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. , Sabaté-Gilarte M. , Saxena A. , Schillebeeckx P. , Schumann D. , Sekhar A. , Smith A.G. , Sosnin N.V. , Sprung P. , Stamatopoulos A. , Tagliente G. , Tain J.L. , Tarifeño-Saldivia A. , Tassan-Got L. , 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. , Cerutti F. , ; Ferrari A. , ; Kawano T. , ; Salvat-Pujol F. , ; Talou P.
Publicación externa No
Medio Proc. Int. Conf. Nucl. React. Mech., NRM
Alcance Conference Paper
Naturaleza Científica
Web https://www.scopus.com/inward/record.uri?eid=2-s2.0-85074287493&partnerID=40&md5=82f981a79713434beef2203e47e3fc49
Fecha de publicacion 01/01/2018
Scopus Id 2-s2.0-85074287493
Abstract The Big Bang Nucleosynthesis describes the production of the lightest nuclides from deuterium to Li at the early stages of the Universe. While a general good agreement is found for most of the isotopes involved in the synthesis, a serious discrepancy between the predicted abundance of 7Li and the related experimental observations is still present. This discrepancy has been referred since several decades as Cosmological Lithium Problem. In one last attempt to find nuclear solutions to this longstanding conundrum, the 7Be(n,a)4He and 7Be(n,p)7Li reactions, that affect predominantly the production of 7Li via the destruction of his parent nucleus 7Be, have been studied. Here we present the 7Be(n,a)4He and 7Be(n,p)7Li reaction cross-section measurements performed at the high-resolution n_TOF facility using the time-of-flight technique and high purity samples. The result of the experiments definitely rules out neutron induced reactions as a solution to the puzzle, thus indicating that explanations have to be sought out in other Physics scenarios. © The Authors, 2019. Published by CERN.
Palabras clave Isotopes; Lithium; Natural resources management; Big bang nucleosynthesis; High purity; High resolution; Neutron-induced reactions; Parent nucleus; Reaction cross-section; Time-of-flight techniques; Nuclear reactions
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