Publications

<sup>80</sup>Se(n,γ) cross-section measurement at CERN n TOF

Author(s)
V. Babiano-Suarez, O. Aberle, V. Alcayne, S. Amaducci, J. Andrzejewski, L. Audouin, M. Bacak, J. Balibrea-Correa, M. Barbagallo, 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, L. A. Damone, 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. Krticka, 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, A. Mengoni, 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. Tarifeo-Saldivia, L. Tassan-Got, B. Thomas, P. Torres-Snchez, 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
Abstract

Radiative neutron capture cross section measurements are of fundamental importance for the study of the slow neutron capture (s-) process of nucleosynthesis. This mechanism is responsible for the formation of most elements heavier than iron in the Universe. Particularly relevant are branching nuclei along the s-process path, which are sensitive to the physical conditions of the stellar environment. One such example is the branching at 79Se (3.27 × 105 y), which shows a thermally dependent ß-decay rate. However, an astrophysically consistent interpretation requires also the knowledge of the closest neighbour isotopes involved. In particular, the 80Se(n,?) cross section directly affects the stellar yield of the "cold"branch leading to the formation of the s-only 82Kr. Experimentally, there exists only one previous measurement on 80Se using the time of flight (TOF) technique. However, the latter suffers from some limitations that are described in this presentation. These drawbacks have been significantly improved in a recent measurement at CERN n TOF. This contribution presents a summary of the latter measurement and the status of the data analysis.

Organisation(s)
Isotope Physics
External organisation(s)
Universitat de València, European Organization for Nuclear Research (CERN), Centro de Investigaciones Energeticas Medioambientales y Tecnológica, Istituto Nazionale di Fisica Nucleare (INFN), Roma, Università degli Studi di Catania, University of Lodz, Université Paris-Saclay, Technische Universität Wien, University of Manchester, University of Zagreb, York University, Università degli Studi di Perugia, Universidade de Santiago de Compostela (USC), Universitat Politècnica de Catalunya, Universidad de Sevilla, INAF - Osservatorio Astronomico d'Abruzzo, Università degli Studi di Bari, National Technical University of Athens (NTUA), University of Edinburgh, Paul Scherrer Institute, Physikalisch-Technische Bundesanstalt, University of Ioannina, Associação EURATOM/IST, Dubna, Johann Wolfgang Goethe-Universität Frankfurt am Main, European Commission JRC, Forschungszentrum Dresden Rossendorf (FZD), Karlsruher Institut für Technologie, Japan Atomic Energy Agency, Charles University Prague, Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Bologna, Università degli Studi di Bologna, Istituto Nazionale di Fisica Nucleare (INFN), Legnaro, CNR, ENEA Centro Ricerche Bologna, Università degli Studi di Trieste, Horia Hulubei Natl Inst R&D Phys & Nucl Engn IFIN, Horia Hulubei National Institute of Physics & Nuclear Engineering, Extreme Light Infrastruct Nucl Phys, Universidad de Granada, Bhabha Atomic Research Centre, Gran Sasso Science Institute, Australian National University
Journal
Journal of Physics: Conference Series
Volume
1668
No. of pages
8
ISSN
1742-6588
DOI
https://doi.org/10.1088/1742-6596/1668/1/012001
Publication date
10-2020
Peer reviewed
Yes
Austrian Fields of Science 2012
103014 Nuclear physics
ASJC Scopus subject areas
Physics and Astronomy(all)
Portal url
https://ucris.univie.ac.at/portal/en/publications/80sen-crosssection-measurement-at-cern-n-tof(da43a2b4-f228-47ef-8c40-f5a814326f96).html