Measurement of 73Ge(n,gamma) cross sections and implications for stellar nucleosynthesis
73Ge(n,gamma) 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 keV is 1.5 to 1.7 times higher than most theoretical predi...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2019 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/130802 |
| Acceso en línea: | https://hdl.handle.net/2117/130802 https://dx.doi.org/10.1016/j.physletb.2019.01.045 |
| Access Level: | acceso abierto |
| Palabra clave: | Nucleosynthesis Neutrons--Capture Cross section Neutron Nuclear reaction Capture cross section nTOF CERN S process Nucleosíntesi Neutrons--Captura Àrees temàtiques de la UPC::Física Àrees temàtiques de la UPC::Energies::Energia nuclear |
| Sumario: | 73Ge(n,gamma) 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 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. |
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