First 80Se(n,γ) cross section measurement with high resolution in the full stellar energy range 1 eV - 100 keV and its astrophysical implications for the s-process

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

doi:10.1051/epjconf/202226011026

All issues

Volume 260 (2022)

EPJ Web Conf., 260 (2022) 11026

Abstract

Open Access

Issue		EPJ Web Conf. Volume 260, 2022 The 16^th International Symposium on Nuclei in the Cosmos (NIC-XVI)


Article Number		11026
Number of page(s)		8
Section		Poster
DOI		https://doi.org/10.1051/epjconf/202226011026
Published online		24 February 2022

EPJ Web of Conferences 260, 11026 (2022)
https://doi.org/10.1051/epjconf/202226011026

First ⁸⁰Se(n,γ) cross section measurement with high resolution in the full stellar energy range 1 eV - 100 keV and its astrophysical implications for the s-process

V. Babiano-Suarez¹, J. Balibrea-Correa¹, L. Caballero-Ontanaya¹, C. Domingo-Pardo¹, I. Ladarescu¹, J. Lerendegui-Marco², J. L. Tain¹, F. Calviño¹⁸, A. Casanovas¹⁸, A. Tarifeño-Saldivia¹⁸, C. Guerrero², O. Aberle³, V. Alcayne⁴, S. Amaducci⁵^,6, J. Andrzejewski⁷, L. Audouin⁸, M. Bacak³^,9^,10, M. Barbagallo³^,11, S. Bennett¹², E. Berthoumieux¹⁰, J. Billowes¹², D. Bosnar¹³, A. Brown¹⁴, M. Busso¹⁵^,16, M. Caamaño¹⁷, M. Calviani³, D. Cano-Ott⁴, F. Cerutti³, E. Chiaveri³^,12, N. Colonna¹¹, G. Cortés¹⁸, M. A. CortésGiraldo², L. Cosentino⁵, S. Cristallo¹⁵^,19, L. A. Damone¹¹^,20, P. J. Davies¹², M. Diakaki²¹^,3, M. Dietz²², R. Dressler²³, Q. Ducasse²⁴, E. Dupont¹⁰, I. Durán¹⁷, Z. Eleme²⁵, B. Fernández-Domínguez¹⁷, A. Ferrari³, P. Finocchiaro⁵, V. Furman²⁶, K. Göbel²⁷, R. Garg²², A. Gawlik-Ramięga⁷, S. Gilardoni³, I. F. Gonçalves²⁸, E. González-Romero⁴, F. Gunsing¹⁰, H. Harada²⁹, S. Heinitz²³, J. Heyse³⁰, D. G. Jenkins¹⁴, A. Junghans³¹, F. Käppeler³², Y. Kadi³, A. Kimura²⁹, I. Knapová³³, M. Kokkoris²¹, Y. Kopatch²⁶, M. Krtička³³, D. Kurtulgil²⁷, C. Lederer-Woods²², H. Leeb⁹, S. J. Lonsdale²², D. Macina³, A. Manna³⁴^,35, T. Martínez⁴, A. Masi³, C. Massimi³⁴^,35, P. Mastinu³⁶, M. Mastromarco³, E. A. Maugeri²³, A. Mazzone¹¹^,37, E. Mendoza⁴, A. Mengoni³⁸, V. Michalopoulou²¹^,3, P. M. Milazzo³⁹, F. Mingrone³, J. Moreno-Soto¹⁰, A. Musumarra⁵^,40, A. Negret⁴¹, R. Nolte²⁴, F. Ogállar⁴², A. Oprea⁴¹, N. Patronis²⁵, A. Pavlik⁴³, J. Perkowski⁷, L. Persanti¹¹^,15^,19, C. Petrone⁴¹, E. Pirovano²⁴, I. Porras⁴², J. Praena⁴², J. M. Quesada², D. Ramos-Doval⁸, T. Rauscher⁴⁴^,45, R. Reifarth²⁷, D. Rochman²³, Y. Romanets²⁸, C. Rubbia³, M. Sabaté-Gilarte²^,3, A. Saxena⁴⁶, P. Schillebeeckx³⁰, D. Schumann²³, A. Sekhar¹², A. G. Smith¹², N. V. Sosnin¹², P. Sprung²³, A. Stamatopoulos²¹, G. Tagliente¹¹, L. Tassan-Got³^,21^,8, Th. Thomas²⁷, P. Torres-Sánchez⁴², A. Tsinganis³, J. Ulrich²³, S. Urlass³¹^,3, S. Valenta³³, G. Vannini³⁴^,35, V. Variale¹¹, P. Vaz²⁸, A. Ventura³⁴, D. Vescovi¹⁵, V. Vlachoudis³, R. Vlastou²¹, A. Wallner⁴⁷, P. J. Woods²², T. Wright¹², P. Žugec¹³ and and the n_TOF Collaboration

¹ Instituto de Fisica Corpuscular, CSIC - Universidad de Valencia, Spain
² Universidad de Sevilla, Spain
³ European Organization for Nuclear Research (CERN), Switzerland
⁴ Centro de Investigaciones Energeticas Medioambientales y Tecnologicas (CIEMAT), Spain
⁵ INFN Laboratori Nazionali del Sud, Catania, Italy
⁶ Dipartimento di Fisica e Astronomia, Universita di Catania, Italy
⁷ University of Lodz, Poland
⁸ Institut de Physique Nucleaire, CNRS-IN2P3, Univ. Paris-Sud, Universite Paris-Saclay, F-91406 Orsay Cedex, France
⁹ TU Wien, Atominstitut, Stadionallee 2, 1020 Wien, Austria
¹⁰ CEA Irfu, Universite Paris-Saclay, F-91191 Gif-sur-Yvette, France
¹¹ Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Italy
¹² University of Manchester, United Kingdom
¹³ Department of Physics, Faculty of Science, University of Zagreb, Zagreb, Croatia
¹⁴ University of York, United Kingdom
¹⁵ Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, Italy
¹⁶ Dipartimento di Fisica e Geologia, Universita di Perugia, Italy
¹⁷ University of Santiago de Compostela, Spain
¹⁸ Universitat Politecnica de Catalunya, Spain
¹⁹ Istituto Nazionale di Astrofisica - Osservatorio Astronomico di Teramo, Italy
²⁰ Dipartimento Interateneo di Fisica, Universita degli Studi di Bari, Italy
²¹ National Technical University of Athens, Greece
²² School of Physics and Astronomy, University of Edinburgh, United Kingdom
²³ Paul Scherrer Institut (PSI), Villigen, Switzerland
²⁴ Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116 Braunschweig, Germany
²⁵ University of Ioannina, Greece
²⁶ Joint Institute for Nuclear Research (JINR), Dubna, Russia
²⁷ Goethe University Frankfurt, Germany
²⁸ Instituto Superior Tecnico, Lisbon, Portugal
²⁹ Japan Atomic Energy Agency (JAEA), Tokai-Mura, Japan
³⁰ European Commission, Joint Research Centre (JRC), Geel, Retieseweg 111, B-2440 Geel, Belgium
³¹ Helmholtz-Zentrum Dresden-Rossendorf, Germany
³² Karlsruhe Institute of Technology, Campus North, IKP, 76021 Karlsruhe, Germany
³³ Charles University, Prague, Czech Republic
³⁴ Istituto Nazionale di Fisica Nucleare, Sezione di Bologna, Italy
³⁵ Dipartimento di Fisica e Astronomia, Universita di Bologna, Italy
³⁶ Istituto Nazionale di Fisica Nucleare, Sezione di Legnaro, Italy
³⁷ Consiglio Nazionale delle Ricerche, Bari, Italy
³⁸ Agenzia nazionale per le nuove tecnologie (ENEA), Bologna, Italy
³⁹ Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Italy
⁴⁰ Dipartimento di Fisica e Astronomia, Universita di Catania, Italy
⁴¹ Horia Hulubei National Institute of Physics and Nuclear Engineering, Romania
⁴² University of Granada, Spain
⁴³ University of Vienna, Faculty of Physics, Vienna, Austria
⁴⁴ Department of Physics, University of Basel, Switzerland
⁴⁵ Centre for Astrophysics Research, University of Hertfordshire, United Kingdom
⁴⁶ Bhabha Atomic Research Centre (BARC), India
⁴⁷ Australian National University, Canberra, Australia

Published online: 24 February 2022

Abstract

Most elements heavier than iron have been generated in the stellar media by means of neutron capture reactions, approximately half are produced by the slow neutron capture or s-process. Radiative neutron capture cross section measurements are of fundamental importance for the study of this mechanism. In this contribution we present a brief summary on the measurement and results for the ⁸⁰Se(n,γ) cross-section. The experiment was carried out at CERN n_TOF EAR1 via the time of flight (ToF) technique, using four C6D6 scintillation detectors with very fast response. More than a hundred new resonances have been analyzed for the first time with a high accuracy. The MACS obtained at kT = 8 keV is 36% smaller than the recommended value in KADo-NiS. Some of the astrophysical implications of this result are elucidated in this contribution.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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