Publikationen

Measurement of <sup>73</sup>Ge(n,γ) cross sections and implications for stellar nucleosynthesis

Autor(en)
C. Lederer-Woods, U. Battino, P. Ferreira, A. Gawlik, C. Guerrero, F. Gunsing, S. Heinitz, J. Lerendegui-Marco, A. Mengoni, R. Reifarth, A. Tattersall, S. Valenta, C. Weiss, O. Aberle, J. Andrzejewski, L. Audouin, V. Bécares, M. Bacak, J. Balibrea, M. Barbagallo, S. Barros, F. Bečvář, C. Beinrucker, F. Belloni, E. Berthoumieux, J. Billowes, D. Bosnar, M. Brugger, M. Caamaño, F. Calviño, M. Calviani, D. Cano-Ott, F. Cerutti, E. Chiaveri, N. Colonna, G. Cortés, M. A. Cortés-Giraldo, L. Cosentino, L. A. Damone, K. Deo, M. Diakaki, M. Dietz, C. Domingo-Pardo, R. Dressler, E. Dupont, I. Durán, B. Fernández-Domínguez, A. Ferrari, P. Finocchiaro, R. J.W. Frost, V. Furman, K. Göbel, A. R. García, I. Gheorghe, T. Glodariu, I. F. Gonçalves, E. González-Romero, A. Goverdovski, E. Griesmayer, H. Harada, T. Heftrich, A. Hernández-Prieto, J. Heyse, D. G. Jenkins, E. Jericha, F. Käppeler, Y. Kadi, T. Katabuchi, P. Kavrigin, V. Ketlerov, V. Khryachkov, A. Kimura, N. Kivel, I. Knapova, M. Kokkoris, M. Krtička, E. Leal-Cidoncha, H. Leeb, M. Licata, S. Lo Meo, R. Losito, D. Macina, J. Marganiec, T. Martínez, C. Massimi, P. Mastinu, M. Mastromarco, F. Matteucci, E. Mendoza, P. M. Milazzo, F. Mingrone, M. Mirea, S. Montesano, A. Musumarra, R. Nolte, F. R. Palomo-Pinto, C. Paradela, N. Patronis, A. Pavlik, J. Perkowski, J. I. Porras, J. Praena, J. M. Quesada, T. Rauscher, A. Riego-Perez, M. Robles, C. Rubbia, J. A. Ryan, M. Sabaté-Gilarte, A. Saxena, P. Schillebeeckx, S. Schmidt, D. Schumann, P. Sedyshev, A. G. Smith, A. Stamatopoulos, S. V. Suryanarayana, G. Tagliente, J. L. Tain, A. Tarifeño-Saldivia, L. Tassan-Got, A. Tsinganis, G. Vannini, V. Variale, P. Vaz, A. Ventura, V. Vlachoudis, R. Vlastou, A. Wallner, S. Warren, M. Weigand, T. Wright, P. Žugec
Abstrakt

73Ge(n,γ) cross sections were measured at the neutron time-of-flight facility n_TOF at CERN up to neutron energies of 300 keV, providing for the first time experimental data above 8 keV. Results indicate that the stellar cross section at kT=30 keV is 1.5 to 1.7 times higher than most theoretical predictions. The new cross sections result in a substantial decrease of 73Ge produced in stars, which would explain the low isotopic abundance of 73Ge in the solar system.

Organisation(en)
Isotopenphysik
Externe Organisation(en)
University of Edinburgh, Johann Wolfgang Goethe-Universität Frankfurt am Main, Associação EURATOM/IST, University of Lodz, Universidad de Sevilla, Université Paris-Saclay, European Organization for Nuclear Research (CERN), Paul Scherrer Institute, ENEA Centro Ricerche Bologna, Charles University Prague, Technische Universität Wien, Centre National De La Recherche Scientifique (CNRS), Centro de Investigaciones Energeticas Medioambientales y Tecnológica, Istituto Nazionale di Fisica Nucleare, Roma, University of Zagreb, Universidade de Santiago de Compostela (USC), Universitat Politècnica de Catalunya, Laboratori Nazionali del Sud, Università degli Studi di Bari, Bhabha Atomic Research Centre, National Technical University of Athens (NTUA), Universitat de València, Dubna, Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN HH), Obninsk, Japan Atomic Energy Agency, European Commission, York University, Karlsruher Institut für Technologie, Tokyo Institute of Technology (TIT), Università degli Studi di Bologna, Università degli Studi di Trieste, Università degli Studi di Catania, Physikalisch-Technische Bundesanstalt (PTB), University of Ioannina, Universidad de Granada, University of Hertfordshire, Universität Basel, Australian National University, University of Manchester, Manchester Metropolitan University
Journal
Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
Band
790
Seiten
458-465
Anzahl der Seiten
8
ISSN
0370-2693
DOI
https://doi.org/10.1016/j.physletb.2019.01.045
Publikationsdatum
03-2019
Peer-reviewed
Ja
ÖFOS 2012
103014 Kernphysik
Schlagwörter
ASJC Scopus Sachgebiete
Nuclear and High Energy Physics
Link zum Portal
https://ucris.univie.ac.at/portal/de/publications/measurement-of-73gen-cross-sections-and-implications-for-stellar-nucleosynthesis(194928ca-5c47-463d-a239-266ed668d577).html