Publikationen

7Be(n,α) and 7Be(n,p) cross-section measurement for the cosmological lithium problem at the n-TOF facility at CERN

Autor(en)
M. Barbagallo, N. Colonna, O. Aberle, J. Andrzejewski, L. Audouin, V. Bécares, M. Bacak, J. Balibrea, S. Barros, F. Bečvář, C. Beinrucker, E. Berthoumieux, J. Billowes, D. Bosnar, M. Brugger, M. Caamaño, F. Calviño, M. Calviani, D. Cano-Ott, R. Cardella, A. Casanovas, D. M. Castelluccio, F. Cerutti, Y. H. Chen, E. Chiaveri, G. Cortés, M. A. Cortés-Giraldo, L. Cosentino, L. A. Damone, M. Diakaki, C. Domingo-Pardo, R. Dressler, E. Dupont, I. Durán, B. Fernández-Domínguez, A. Ferrari, P. Ferreira, P. Finocchiaro, V. Furman, K. Göbel, A. R. García, A. Gawlik, T. Glodariu, I. F. Gonçalves, E. González, A. Goverdovski, E. Griesmayer, C. Guerrero, F. Gunsing, H. Harada, T. Heftrich, S. Heinitz, J. Heyse, D. G. Jenkins, E. Jericha, F. Käppeler, Y. Kadi, T. Katabuchi, P. Kavrigin, V. Ketlerov, V. Khryachkov, A. Kimura, N. Kivel, M. Kokkoris, M. Krtička, E. Leal-Cidoncha, C. Lederer, H. Leeb, J. Lerendegui-Marco, S. Lo Meo, S. J. Lonsdale, R. Losito, D. Macina, J. Marganiec, T. Martínez, C. Massimi, P. Mastinu, M. Mastromarco, F. Matteucci, E. A. Maugeri, E. Mendoza, A. Mengoni, P. M. Milazzo, F. Mingrone, M. Mirea, S. Montesano, A. Musumarra, R. Nolte, A. Oprea, N. Patronis, A. Pavlik, J. Perkowski, J. I. Porras, J. Praena, J. M. Quesada, K. Rajeev, T. Rauscher, R. Reifarth, A. Riego-Perez, P. C. Rout, C. Rubbia, J. A. Ryan, M. Sabaté-Gilarte, A. Saxena, P. Schillebeeckx, S. Schmidt, D. Schumann, P. Sedyshev, A. G. Smith, A. Stamatopoulos, G. Tagliente, J. L. Tain, A. Tarifeño-Saldivia, L. Tassan-Got, A. Tsinganis, S. Valenta, G. Vannini, V. Variale, P. Vaz, A. Ventura, V. Vlachoudis, R. Vlastou, A. Wallner, S. Warren, M. Weigand, C. Weiss, C. Wolf, P. J. Woods, T. Wright, P. Zugec
Abstrakt

The Cosmological Lithium Problem refers to the large discrepancy between the abundance of primordial 7Li predicted by the standard theory of Big Bang Nucleosynthesis and the value inferred from the so-called "Spite plateau" in halo stars. A possible explanation for this longstanding puzzle in Nuclear Astrophysics is related to the incorrect estimation of the destruction rate of 7Be, which is responsible for the production of 95% of primordial Lithium. While charged-particle induced reactions have mostly been ruled out, data on the 7Be(n,α) and 7Be(n,p) reactions are scarce or completely missing, so that a large uncertainty still affects the abundance of 7Li predicted by the standard theory of Big Bang Nucleosynthesis. Both reactions have been measured at the n-TOF facility at CERN, providing for the first time data in a wide neutron energy range.

Organisation(en)
Isotopenphysik, Institut für Sportwissenschaft
Externe Organisation(en)
Istituto Nazionale di Fisica Nucleare, Roma, Sezione di Bologna, European Organization for Nuclear Research (CERN), University of Lodz, Institut de Physique Nucléaire d'Orsay (IPN), Centro de Investigaciones Energeticas Medioambientales y Tecnológica, Technische Universität Wien, Associação EURATOM/IST, Charles University Prague, Johann Wolfgang Goethe-Universität Frankfurt am Main, IRFU, Manchester Metropolitan University, University of Zagreb, Universidade de Santiago de Compostela (USC), Universitat Politècnica de Catalunya, ENEA Centro Ricerche Bologna, Universidad de Sevilla, Università degli Studi di Bari, Universitat de València, Paul Scherrer Institute, Joint Institute for Nuclear Research, Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN HH), Institute of Physics and Power Engineering (IPPE), Japan Atomic Energy Agency, European Commission, University of York, Karlsruher Institut für Technologie, Tokyo Institute of Technology (TIT), National Technical University of Athens (NTUA), University of Edinburgh, Università degli Studi di Catania, Università degli Studi di Bologna, Dipartimento di Astronomia, Università degli Studi di Trieste, Physikalisch-Technische Bundesanstalt (PTB), University of Ioannina, Universidad de Granada, Bhabha Atomic Research Centre, Centre for Astrophysics Research, University of Hertfordshire, Universität Basel, Australian National University
Anzahl der Seiten
4
DOI
https://doi.org/10.1051/epjconf/201714601012
Publikationsdatum
09-2017
Peer-reviewed
Ja
ÖFOS 2012
103014 Kernphysik
ASJC Scopus Sachgebiete
Physics and Astronomy(all)
Link zum Portal
https://ucris.univie.ac.at/portal/de/publications/7ben-and-7benp-crosssection-measurement-for-the-cosmological-lithium-problem-at-the-ntof-facility-at-cern(b1d97421-a65d-4128-b863-d4067bcf9c2f).html