Artículo
80Se(n,?) cross-section measurement at CERN n TOF
Autor/es | Babiano Suárez, V.
Aberle, Oliver Alcayne, V. Amaducci, Simone Andrzejewski, J. Audouin, Laurent Cortés Giraldo, Miguel Antonio Lerendegui Marco, Jorge Millán Callado, María de los Ángeles Quesada Molina, José Manuel Sabaté Gilarte, Marta Žugec, P. Guerrero Sánchez, Carlos |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Fecha de publicación | 2020 |
Fecha de depósito | 2020-12-04 |
Publicado en |
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Resumen | Radiative neutron capture cross section measurements are of fundamental importance for the study of the slow neutron capture (s-) process of nucleosynthesis. This mechanism is responsible for the formation of most elements ... Radiative neutron capture cross section measurements are of fundamental importance for the study of the slow neutron capture (s-) process of nucleosynthesis. This mechanism is responsible for the formation of most elements heavier than iron in the Universe. Particularly relevant are branching nuclei along the s-process path, which are sensitive to the physical conditions of the stellar environment. One such example is the branching at 79Se (3.27 × 105 y), which shows a thermally dependent ß-decay rate. However, an astrophysically consistent interpretation requires also the knowledge of the closest neighbour isotopes involved. In particular, the 80Se(n,?) cross section directly affects the stellar yield of the "cold"branch leading to the formation of the s-only 82Kr. Experimentally, there exists only one previous measurement on 80Se using the time of flight (TOF) technique. However, the latter suffers from some limitations that are described in this presentation. These drawbacks have been significantly improved in a recent measurement at CERN n TOF. This contribution presents a summary of the latter measurement and the status of the data analysis. |
Agencias financiadoras | European Research Council (ERC) |
Identificador del proyecto | 681740
FPA2017-83946-C2-1-P |
Cita | Babiano Suárez, V., Aberle, O., Alcayne, V., Amaducci, S., Andrzejewski, J., Audouin, L.,...,Guerrero Sánchez, C. (2020). 80Se(n,?) cross-section measurement at CERN n TOF. Journal of Physics: Conference Series, 1668 (1), 012001. |
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80Se(n,γ) cross-section.pdf | 248.6Kb | [PDF] | Ver/ | |