First Measurement of 72Ge(n, γ) at n_TOF

M. Dietz; C. Lederer-Woods; O. Aberle; J. Andrzejewski; L. Audouin; M. Bacak; J. Balibrea; M. Barbagallo; F. Bečvář; E. Berthoumieux; J. Billowes; D. Bosnar; A. Brown; M. Caamaño; F. Calviño; M. Calviani; D. Cano-Ott; R. Cardella; A. Casanovas; F. Cerutti; Y. H. Chen; E. Chiaveri; N. Colonna; G. Cortés; M. A Cortés-Giraldo; L. Cosentino; L. A. Damone; M. Diakaki; C. Domingo-Pardo; R. Dressler; E. Dupont; I. Durán; B. Fernández-Dominguez; A. Ferrari; P. Ferreira; P. Finocchiaro; V. Furman; K. Göbel; A. R. García; R. Garg; A. Gawlik; S. Gilardoni; T. Glodariu; I. F. Goncalves; E. González-Romero; E. Griesmayer; C. Guerrero; F. Gunsing; H. Harada; S. Heinitz; J. Heyse; D. G. Jenkins; E. Jericha; F. Käppeler; Y. Kadi; D. Kahl; A. Kalamara; P. Kavrigin; A. Kimura; N. Kivel; M. Kokkoris; M. Krtička; D. Kurtulgil; E. Leal-Cidoncha; H. Leeb; J. Lerendegui-Marco; S. Lo Meo; S. J Lonsdale; D. Macina; J. Marganiec; T. Martínez; A. Masi; C. Massimi; P. Mastinu; M. Mastromarco; E. A Maugeri; A. Mazzone; E. Mendoza; A. Mengoni; P. M Milazzo; F. Mingrone; A. Musumarra; A. Negret; R. Nolte; A. Oprea; N. Patronis; A. Pavlik; J. Perkowski; I. Porras; J. Praena; J. M Quesada; D. Radeck; T. Rauscher; R. Reifarth; C. Rubbia; J. A Ryan; M. Sabateé-Gilarte; A. Saxena; P. Schillebeeckx; D. Schumann; P. Sedyshev; A. G Smith; N. V Sosnin; A. Stamatopoulos; G. Tagliente; J. L Tain; A. Tarifeño-Saldivia; L. Tassan-Got; S. Valenta; G. Vannini; V. Variale; P. Vaz; A. Ventura; V. Vlachoudis; R. Vlastou; A. Wallner; S. Warren; C. Weiss; P. J Woods; T. Wright; P. Žugec

doi:10.1051/epjconf/201718402005

All issues

Volume 184 (2018)

EPJ Web Conf., 184 (2018) 02005

Abstract

Open Access

Issue		EPJ Web Conf. Volume 184, 2018 9^th European Summer School on Experimental Nuclear Astrophysics


Article Number		02005
Number of page(s)		5
Section		Session 2
DOI		https://doi.org/10.1051/epjconf/201718402005
Published online		29 June 2018

EPJ Web of Conferences 184, 02005 (2018)
https://doi.org/10.1051/epjconf/201718402005

First Measurement of ⁷²Ge(n, γ) at n_TOF

M. Dietz¹^*, C. Lederer-Woods¹, O. Aberle², J. Andrzejewski³, L. Audouin⁴, M. Bacak⁵^,2^,6, J. Balibrea⁷, M. Barbagallo⁸, F. Bečvář⁹, E. Berthoumieux⁶, J. Billowes¹⁰, D. Bosnar¹¹, A. Brown¹², M. Caamaño¹³, F. Calviño¹⁴, M. Calviani², D. Cano-Ott⁷, R. Cardella², A. Casanovas¹⁴, F. Cerutti², Y. H. Chen⁴, E. Chiaveri²^,10^,15, N. Colonna⁸, G. Cortés¹⁴, M. A Cortés-Giraldo¹⁵, L. Cosentino¹⁶, L. A. Damone⁸^,17, M. Diakaki⁶, C. Domingo-Pardo¹⁸, R. Dressler¹⁹, E. Dupont⁶, I. Durán¹³, B. Fernández-Dominguez¹³, A. Ferrari², P. Ferreira²⁰, P. Finocchiaro¹⁶, V. Furman²¹, K. Göbel²², A. R. García⁷, R. Garg¹, A. Gawlik³, S. Gilardoni², T. Glodariu²³, I. F. Goncalves²⁰, E. González-Romero⁷, E. Griesmayer⁵, C. Guerrero¹⁵, F. Gunsing⁶^,2, H. Harada²⁴, S. Heinitz¹⁹, J. Heyse²⁵, D. G. Jenkins¹², E. Jericha⁵, F. Käppeler²⁶, Y. Kadi², D. Kahl¹, A. Kalamara²⁷, P. Kavrigin⁵, A. Kimura²⁴, N. Kivel¹⁹, M. Kokkoris²⁷, M. Krtička⁹, D. Kurtulgil²², E. Leal-Cidoncha¹³, H. Leeb⁵, J. Lerendegui-Marco¹⁵, S. Lo Meo²⁹^,28, S. J Lonsdale¹, D. Macina², J. Marganiec³^,30, T. Martínez⁷, A. Masi², C. Massimi²⁹^,30, P. Mastinu³², M. Mastromarco⁸, E. A Maugeri¹⁹, A. Mazzone⁸^,33, E. Mendoza⁷, A. Mengoni²⁸, P. M Milazzo³⁴, F. Mingrone², A. Musumarra¹⁶^,35, A. Negret²³, R. Nolte³⁰, A. Oprea²³, N. Patronis³⁶, A. Pavlik³⁷, J. Perkowski³, I. Porras³⁸, J. Praena³⁸, J. M Quesada¹⁵, D. Radeck³⁰, T. Rauscher³⁹^,40, R. Reifarth²², C. Rubbia², J. A Ryan¹⁰, M. Sabateé-Gilarte²^,15, A. Saxena⁴¹, P. Schillebeeckx²⁵, D. Schumann¹⁹, P. Sedyshev²¹, A. G Smith¹⁰, N. V Sosnin¹⁰, A. Stamatopoulos²⁷, G. Tagliente⁸, J. L Tain¹⁸, A. Tarifeño-Saldivia¹⁴, L. Tassan-Got⁴, S. Valenta⁹, G. Vannini²⁹^,31, V. Variale⁸, P. Vaz²⁰, A. Ventura²⁹, V. Vlachoudis², R. Vlastou²⁷, A. Wallner⁴², S. Warren¹⁰, C. Weiss⁵, P. J Woods¹, T. Wright¹⁰ and P. Žugec¹¹^,2

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

^* e-mail: mirco.dietz@ed.ac.uk

Published online: 29 June 2018

Abstract

The slow neutron capture process (s-process) is responsible for producing about half of the elemental abundances heavier than iron in the universe. Neutron capture cross sections on stable isotopes are a key nuclear physics input for s-process studies. The ⁷²Ge(n, γ) cross section has an important influence on production of isotopes between Ge and Zr during s-process in massive stars and therefore experimental data are urgently required. ⁷²Ge(n, γ) was measured at the neutron time-of-flight facility n_TOF (CERN) for the first time at stellar energies. The measurement was performed using an enriched ⁷²GeO₂ sample at a flight path of 185m with a set of liquid scintillation detectors (C₆D₆). The motivation, experiment and current status of the data analysis are reported.

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