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

6533b7d7fe1ef96bd1267bfd

RESEARCH PRODUCT

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

M. Mirea J. Marganiec F. Calviño H. Leeb V. Bécares J. Perkowski Petar ŽUgec P. F. Mastinu A. Musumarra D. G. Jenkins Tanja Heftrich F. Gunsing P. Vaz V. Furman Y. H. Chen Tatsuya Katabuchi A. Riego-perez L. Cosentino Cristian Massimi Cristian Massimi S. Heinitz A. Casanovas E. A. Maugeri Alberto Ventura A. Saxena Ariel Tarifeño-saldivia S. J. Lonsdale S. Barros G. Vannini G. Vannini C. Wolf J. Lerendegui-marco O. Aberle F. Käppeler A. Tsinganis E. Berthoumieux M. Krtička I. F. Gonçalves A. Kimura Alfredo Ferrari Mario Weigand J. Billowes N. Kivel T. Martinez Nicola Colonna E. Dupont M. A. Cortés-giraldo A. Stamatopoulos E. Chiaveri G. Cortes D. Cano-ott Rene Reifarth V. Khryachkov E. González Alberto Mengoni P. Ferreira Stefan Schmidt Mario Barbagallo D. Schumann J. I. Porras J. I. Porras J. M. Quesada L. Tassan-got F. Bečvář R. Cardella A. Pavlik G. Tagliente C. Domingo-pardo K. Rajeev B. Fernández-domínguez Francesca Matteucci Francesca Matteucci E. Jericha T. Glodariu Paolo Finocchiaro J. L. Tain P. Schillebeeckx M. Bacak J. A. Ryan M. Caamaño M. Diakaki F. Cerutti Roberto Losito P. V. Sedyshev L. Audouin A. Oprea J. Heyse Hideo Harada D. M. Castelluccio D. M. Castelluccio M. Mastromarco Javier Praena Javier Praena S. Lo Meo S. Lo Meo Carlos Guerrero Anton Wallner S. Montesano J. Balibrea S. Warren M. Sabaté-gilarte M. Sabaté-gilarte V. Variale R. Nolte A. Goverdovski E. Leal-cidoncha A. Gawlik Thomas Rauscher Thomas Rauscher P. C. Rout C. Lederer S. Valenta F. Mingrone J. Andrzejewski Marco Calviani Carlo Rubbia V. Vlachoudis A. G. Smith V. Ketlerov Philip Woods P. M. Milazzo C. Weiss C. Weiss R. Vlastou A. R. García Damir Bosnar Y. Kadi M. Brugger K. Göbel C. Beinrucker T. Wright M. Kokkoris N. Patronis I. Duran R. Dressler P. Kavrigin E. Griesmayer L. A. Damone L. A. Damone E. Mendoza D. Macina

subject

Astrofísica nTOF QC1-999 chemistry.chemical_element Neutron Astrophysics 01 natural sciences 7. Clean energy Nuclear physics Physics and Astronomy (all)Big Bang nucleosynthesis Nucleosynthesis CERN 0103 physical sciences Nuclear astrophysics Astrophysics::Solar and Stellar Astrophysics Neutron 010306 general physics Nuclear Experiment Astrophysics::Galaxy Astrophysics :Energies::Energia nuclear [Àrees temàtiques de la UPC]Neutrons Physics Alpha Large Hadron Collider :Física [Àrees temàtiques de la UPC]010308 nuclear & particles physics Physics Stars chemistry Lithium Halo Nucleosynthesis Nucleosíntesi

description

One of the most puzzling problems in Nuclear Astrophysics is the “Cosmological Lithium Problem”, i.e the discrepancy between the primordial abundance of \(^{7}\)Li observed in metal poor halo stars (Asplund et al. in Astrophys J 644:229–259, 2006, [1]), and the one predicted by Big Bang Nucleosynthesis (BBN). One of the reactions that could have an impact on the problem is \(^{7}\)Be(n,p)\(^{7}\)Li. Despite of the importance of this reaction in BBN, the cross-section has never been directly measured at the energies of interest for BBN. Taking advantage of the innovative features of the second experimental area at the n\(\_\)TOF facility at CERN (Sabate-Gilarte et al. in Eur Phys J A 53:210, 2017, [2]; Weiss et al. in NIMA 799:90, 2015, [3]), an accurate measurement of \(^{7}\)Be(n,p) cross section has been recently performed at n\(\_\)TOF, with a pure \(^{7}\)Be target produced by implantation of a \(^{7}\)Be beam at ISOLDE. The mesurement started in April 2016 and lasted for two months. The experimental procedure, the setup used in the measurement and the results obtained so far will be here presented.

year	journal	country	edition	language
2017-01-01