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

AuthorsLederer-Woods, C.; Battino, U.; Ferreira, P. ; Gawlik, A.; Guerrero, C.; Gunsing, F.; Heinitz, S.; Lerendegui-Marco, J.; Mengoni, A.; Reifarth, R.; Tattersall, A.; Valenta, S.; Weiss, C.; Aberle, O.; Andrzejewski, J.; Audouin, L.; Bécares, V.; Bacak, M.; Balibrea, J.; Barbagallo, M.; Barros, S.; Be¿vá¿, F.; Beinrucker, C.; Belloni, F.; Berthoumieux, E.; Billowes, J.; Billowes, J.; Bosnar, D.; Brugger, M.; Caamaño, M.; Calviño, F.; Calviani, M.; Cano-Ott, D.; Cerutti, F.; Chiaveri, E.; Colonna, N.; Colonna, N.; Cortés, G.; Cortés-Giraldo, M.A.; Cosentino, L.; Cosentino, L.; Damone, L.A.; Deo, K.; Diakaki, M.; Dietz, M.; Domingo Pardo, César ; Dressler, R.; Dupont, E.; Durán, I.; Fernández-Domínguez, B.; Ferrari, A.; Finocchiaro, P.; García, A.R.; González-Romero, E.; Hernández-Prieto, A.; Leal-Cidoncha, E.; Martínez, T.; Mendoza, E.; Palomo-Pinto, F.R.; Paradela, C.; Porras, J.I.; Praena, J.; Quesada, J.M.; Riego-Perez, A.; Robles, M.; Sabaté-Gilarte, M.; Taín, José Luis ; Tarifeño-Saldivia, A.
Keywordss process
Neutron capture
Issue DateMar-2019
PublisherElsevier BV
CitationPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 790: 458- 465 (2019)
AbstractGe(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 Ge produced in stars, which would explain the low isotopic abundance of Ge in the solar system.
Identifiersdoi: 10.1016/j.physletb.2019.01.045
issn: 0370-2693
Appears in Collections:(IFIC) Artículos
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