New reaction rates for the destruction of 7Be during big bang nucleosynthesis measured at CERN/n_TOF and their implications on the cosmological lithium problem

A. Mengoni; L.A. Damone; M. Barbagallo; O. Aberle; V. Alcayne; S. Amaducci; J. Andrzejewski; L. Audouin; V Babiano-Suarez; M. Bacak; S. Bennett; E. Berthoumieux; D. Bosnar; A.S. Brown; M. Busso; M. Caamaño; L. Caballero; M. Calviani; F. Calviño; D Cano-Ott; A. Casanovas; F. Cerutti; E. Chiaveri; N. Colonna; G.P. Cortés; M.A. Cortés-Giraldo; L. Cosentino; S. Cristallo; P.J. Davies; M. Diakaki; M. Dietz; C Domingo-Pardo; R. Dressler; Q. Ducasse; E. Dupont; I. Durán; Z. Eleme; B. Fernández-Domíngez; A. Ferrari; I. Ferro-Gonçalves; P. Finocchiaro; V. Furman; R. Garg; A. Gawlik; S. Gilardoni; K. Göbel; E. González-Romero; C. Guerrero; F. Gunsing; S. Heinitz; J. Heyse; D.G. Jenkins; E. Jericha; U. Jiri; A. Junghans; Y. Kadi; F. Käppeler; A. Kimura; I. Knapová; M. Kokkoris; Y. Kopatch; M. Krtička; D. Kurtulgil; I. Ladarescu; C Lederer-Woods; J Lerendegui-Marco; S.-J. Lonsdale; D. Macina; A. Manna; T. Martínez; A. Masi; C. Massimi; P.F. Mastinu; M. Mastromarco; E. Maugeri; A. Mazzone; E. Mendoza; V. Michalopoulou; P.M. Milazzo; M.A. Millán-Callado; F. Mingrone; J Moreno-Soto; A. Musumarra; A. Negret; F. Ogállar; A. Oprea; N. Patronis; A. Pavlik; J. Perkowski; C. Petrone; L. Piersanti; E. Pirovano; I. Porras; J. Praena; J.M. Quesada; D. Ramos Doval; R. Reifarth; D. Rochman; C. Rubbia; M. Sabaté-Gilarte; A. Saxena; P. Schillebeeckx; D. Schumann; A. Sekhar; A.G. Smith; N. Sosnin; P. Sprung; A. Stamatopoulos; G. Tagliente; J.L. Tain; A.E. Tarifeño-Saldivia; L Tassan-Got; B. Thomas; P. Torres-Sánchez; A. Tsinganis; S. Urlass; S. Valenta; G. Vannini; V. Variale; P. Vaz; A. Ventura; D. Vescovi; V. Vlachoudis; R. Vlastou; A. Wallner; P.J. Woods; T.J. Wright; P. Žugec

doi:10.1051/epjconf/202023907001

All issues

Volume 239 (2020)

EPJ Web Conf., 239 (2020) 07001

Abstract

Open Access

Issue		EPJ Web Conf. Volume 239, 2020 ND 2019: International Conference on Nuclear Data for Science and Technology


Article Number		07001
Number of page(s)		4
Section		Nuclear Data for Astrophysics and Cosmology
DOI		https://doi.org/10.1051/epjconf/202023907001
Published online		30 September 2020

EPJ Web of Conferences 239, 07001 (2020)
https://doi.org/10.1051/epjconf/202023907001

New reaction rates for the destruction of ⁷Be during big bang nucleosynthesis measured at CERN/n_TOF and their implications on the cosmological lithium problem

A. Mengoni¹^,2, L.A. Damone³^,4, M. Barbagallo⁵^,3, O. Aberle⁵, V. Alcayne⁶, S. Amaducci⁷^,8, J. Andrzejewski⁹, L. Audouin¹⁰, V Babiano-Suarez¹¹, M. Bacak⁵^,12^,13, S. Bennett¹⁴, E. Berthoumieux¹³, D. Bosnar¹⁵, A.S. Brown¹⁶, M. Busso¹⁷^,18, M. Caamaño¹⁹, L. Caballero¹¹, M. Calviani⁵, F. Calviño²⁰, D Cano-Ott⁶, A. Casanovas²⁰, F. Cerutti⁵, E. Chiaveri¹⁴^,21^,5, N. Colonna³, G.P. Cortés²⁰, M.A. Cortés-Giraldo²¹, L. Cosentino⁷, S. Cristallo¹⁷^,22, P.J. Davies¹⁴, M. Diakaki²³, M. Dietz²⁴, C Domingo-Pardo¹¹, R. Dressler²⁵, Q. Ducasse²⁶, E. Dupont¹³, I. Durán¹⁹, Z. Eleme²⁷, B. Fernández-Domíngez¹⁹, A. Ferrari⁵, I. Ferro-Gonçalves²⁸, P. Finocchiaro⁷, V. Furman²⁹, R. Garg²⁴, A. Gawlik⁹, S. Gilardoni⁵, K. Göbel³⁰, E. González-Romero⁶, C. Guerrero²¹, F. Gunsing¹³, S. Heinitz²⁵, J. Heyse³¹, D.G. Jenkins¹⁶, E. Jericha¹², U. Jiri²⁵, A. Junghans³², Y. Kadi⁵, F. Käppeler³³, A. Kimura³⁴, I. Knapová³⁵, M. Kokkoris²³, Y. Kopatch²⁹, M. Krtička³⁵, D. Kurtulgil³⁰, I. Ladarescu¹¹, C Lederer-Woods²⁴, J Lerendegui-Marco²¹, S.-J. Lonsdale²⁴, D. Macina⁵, A. Manna²^,36, T. Martínez⁶, A. Masi⁵, C. Massimi²^,36, P.F. Mastinu³⁷, M. Mastromarco⁵^,14, E. Maugeri²⁵, A. Mazzone³^,38, E. Mendoza⁶, V. Michalopoulou⁵^,23, P.M. Milazzo³⁹, M.A. Millán-Callado²¹, F. Mingrone⁵, J Moreno-Soto¹³, A. Musumarra⁷^,8, A. Negret⁴⁰, F. Ogállar⁴¹, A. Oprea⁴⁰, N. Patronis²⁷, A. Pavlik⁴², J. Perkowski⁹, C. Petrone⁴⁰, L. Piersanti¹⁷^,22, E. Pirovano²⁶, I. Porras⁴¹, J. Praena⁴¹, J.M. Quesada²¹, D. Ramos Doval¹⁰, R. Reifarth³⁰, D. Rochman²⁵, C. Rubbia⁵, M. Sabaté-Gilarte²¹^,5, A. Saxena⁴³, P. Schillebeeckx³¹, D. Schumann²⁵, A. Sekhar¹⁴, A.G. Smith¹⁴, N. Sosnin¹⁴, P. Sprung²⁵, A. Stamatopoulos²³, G. Tagliente³, J.L. Tain¹¹, A.E. Tarifeño-Saldivia²⁰, L Tassan-Got⁵^,23^,10, B. Thomas³⁰, P. Torres-Sánchez⁴¹, A. Tsinganis⁵, S. Urlass⁵^,32, S. Valenta³⁵, G. Vannini²^,36, V. Variale³, P. Vaz²⁸, A. Ventura², D. Vescovi¹⁷^,44, V. Vlachoudis⁵, R. Vlastou²³, A. Wallner⁴⁵, P.J. Woods²⁴, T.J. Wright¹⁴ and P. Žugec¹⁵

¹ Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico
² Istituto Nazionale di Fisica Nucleare, Sezione di Bologna, Italy
³ Istituto Nazionale di Fisica Nucleare, Bari, Italy
⁴ Dipartimento di Fisica, Università degli Studi di Bari, Italy
⁵ European Organization for Nuclear Research (CERN), Switzerland
⁶ Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Spain
⁷ INFN Laboratori Nazionali del Sud, Catania, Italy
⁸ Dipartimento di Fisica e Astronomia, Università di Catania, Italy
⁹ University of Lodz, Poland
¹⁰ IPN, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay, Orsay, France
¹¹ Institute de Física Corpuscular, CSIC - Universidad de Valencia, Spain
¹² Technische Universität Wien, Austria
¹³ CEA Saclay, Irfu, Université Paris-Saclay, Gif-sur-Yvette, France
¹⁴ University of Manchester, United Kingdom
¹⁵ Department of Physics, Faculty of Science, University of Zagreb, Croatia
¹⁶ University of York, United Kingdom
¹⁷ Istituto Nazionale di Fisica Nazionale, Perugia, Italy
¹⁸ Dipartimento di Fisica e Geologia, Università di Perugia, Italy
¹⁹ University of Santiago de Compostela, Spain
²⁰ Universitat Politècnica de Catalunya, Spain
²¹ Universidad de Sevilla, Spain
²² Istituto Nazionale di Astrofisica - Osservatorio Astronomico d'Abruzzo, Italy
²³ National Technical University of Athens, Greece
²⁴ School of Physics and Astronomy, University of Edinburgh, United Kingdom
²⁵ Paul Scherrer Institut (PSI), Villigen, Switzerland
²⁶ Physikalisch-Technische Bundesanstalt (PTB), Braunschweig, Germany
²⁷ University of Ioannina, Greece
²⁸ Instituto Superior Técnico, Lisbon, Portugal
²⁹ Joint Institute for Nuclear Research (JINR), Dubna, Russia
³⁰ Goethe University Frankfurt, Germany
³¹ European Commission, Joint Research Centre, Geel, Belgium
³² Helmholtz-Zentrum Dresden-Rossendorf, Germany
³³ Karlsruhe Institute of Technology, Karlsruhe, Germany
³⁴ Japan Atomic Energy Agency (JAEA), Tokai-mura, Japan
³⁵ Charles University, Prague, Czech Republic
³⁶ Dipartimento di Fisica e Astronomia, Università di Bologna, Italy
³⁷ Istituto Nazionale di Fisica Nucleare, Sezione di Legnaro, Italy
³⁸ Consiglio Nazionale delle Ricerche, Bari, Italy
³⁹ Istituto Nazionale di Fisica Nucleare, Trieste, Italy
⁴⁰ Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH), Bucharest
⁴¹ University of Granada, Spain
⁴² University of Vienna, Faculty of Physics, Vienna, Austria
⁴³ Bhabha Atomic Research Centre (BARC), India
⁴⁴ Gran Sasso Science Institute (GSSI), L'Aquila, Italy
⁴⁵ Australian National University, Canberra, Australia

Published online: 30 September 2020

Abstract

New measurements of the ⁷Be(n,α)⁴He and ⁷Be(n,p)⁷Li reaction cross sections from thermal to keV neutron energies have been recently performed at CERN/n_TOF. Based on the new experimental results, astrophysical reaction rates have been derived for both reactions, including a proper evaluation of their uncertainties in the thermal energy range of interest for big bang nucleosynthesis studies. The new estimate of the ⁷Be destruction rate, based on these new results, yields a decrease of the predicted cosmological ⁷Li abundance insufficient to provide a viable solution to the cosmological lithium problem.

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