7Be(n,p)7Li cross section measurement for the cosmological lithium problem at the n_TOF Facility at CERN

Damone, L. A. and Barbagallo, M. and Mastromarco, M. and Mengoni, A. and Colonna, N. and Cosentino, L. and Maugeri, E. A. and Heinitz, S. and Schumann, D. and Dressler, R. and Kappeler, F. and Finocchiaro, P. and Andrzejewski, J. and Perkowski, J. and Gawlik, A. and Aberle, O. and Altstadt, S. and Ayranov, M. and Audouin, L. and Bacak, M. and Balibrea-Correa, J. and Ballof, J. and Bcares, V. and Becvar, F. and Beinrucker, C. and Bellia, G. and Bernardes, A. P. and Berthoumieux, E. and Billowes, J. and Borge, M. J. G. and Bosnar, D. and Brown, A. and Brugger, M. and Busso, Maurizio and Caamano, M. and Calvino, F. and Calviani, M. and Cano-Ott, D. and Cardella, R. and Casanovas, A. and Castelluccio, D. M. and Catherall, R. and Cerutti, F. and Chen, Y. H. and Chiaveri, E. and Corts, G. and Cortes-Giraldo, M. A. and Cristallo, Sergio and Diakaki, M. and Dietz, M. and Domingo-Pardo, C. and Dorsival, A. and Dupont, E. and Duran, I. and Fernandez-Dominguez, B. and Ferrari, A. and Ferreira, P. and Furman, W. and Ganesan, S. and Garca-Rios, A. and Gilardoni, S. and Glodariu, T. and Gobel, Kathrin and Goncalves, I. F. and Gonzalez-Romero, E. and Goodacre, T. D. and Griesmayer, E. and Guerrero, C. and Gunsing, F. and Harada, H. and Heftrich, Tanja and Heyse, J. and Jenkins, D. G. and Jericha, E. and Johnston, K. and Kadi, Y. and Kalamara, A. and Katabuchi, T. and Kavrigin, P. and Kimura, A. and Kivel, N. and Kohester, U. and Kokkoris, M. and Krticka, M. and Kurtulgil, Deniz and Leal-Cidoncha, E. and Lederer-Woods, Claudia and Leeb, H. and Lerendegui-Marco, J. and Lo Meo, S. and Lonsdale, S. J. and Losito, R. and Macina, D. and Marganiec, J. and Marsh, B. and Martinez, T. and Martins Correia, J. G. and Masi, A. and Massimi, C. and Mastinu, P. and Matteucci, F. and Mazzone, A. and Mendoza, E. and Milazzo, P. M. and Mingrone, Federica and Mirea, M. and Musumarra, A. and Negret, A. and Nolte, R. and Oprea, A. and Patronis, N. and Pavlik, A. and Piersanti, Luciano and Piscopo, M. and Plompen, A. and Porras, I. and Praena, J. and Quesada, J. M. and Radeck, D. and Rajeev, K. and Rauscher, Thomas and Reifarth, Rene and Riego-Perez, A. and Rothe, S. and Rout, P. and Rubbia, C. and Ryan, J. and Sabate-Gilarte, M. and Saxena, A. and Schell, J. and Schillebeeckx, P. and Schmidt, S. and Sedyshev, P. and Seiffert, C. and Smith, A. G. and Sosnin, N. V. and Stamatopoulos, A. and Stora, T. and Tagliente, G. and Tain, J. L. and Tarifeno-Saldivia, A. and Tassan-Got, L. and Tsinganis, A. and Valenta, S. and Vannini, G. and Variale, V. and Vaz, P. and Ventura, A. and Vlachoudis, V. and Vlastou, R. and Wallner, A. and Warren, S. and Weigand, Mario and Weiss, C. and Wolf, C. and Woods, P. J. and Wright, T. and Zugec, P.. (2019) 7Be(n,p)7Li cross section measurement for the cosmological lithium problem at the n_TOF Facility at CERN. In: Proceedings Nuclei in the Cosmos, 219. Cham, pp. 25-32.

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Official URL: https://edoc.unibas.ch/78634/

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One of the most puzzling problems in Nuclear Astrophysics is the ldquoCosmological Lithium Problemrdquo, i.e the discrepancy between the primordial abundance of 7Li 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 7Be(n,p)7Li. 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 7Be(n,p) cross section has been recently performed at n_TOF, with a pure 7Be target produced by implantation of a 7Be 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.
Faculties and Departments:05 Faculty of Science > Departement Physik > Former Organization Units Physics > Theoretische Physik Astrophysik (Thielemann)
UniBasel Contributors:Rauscher, Thomas
Item Type:Conference or Workshop Item, refereed
Conference or workshop item Subtype:Conference Paper
Series Name:Springer Proceedings in Physics book series
Note:Publication type according to Uni Basel Research Database: Conference paper
Identification Number:
Last Modified:23 Sep 2020 15:11
Deposited On:23 Sep 2020 14:11

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