Repositorio de producción científica de la Universidad de Sevilla

7Be(n,α) and 7Be(n,p) cross-section measurement for the cosmological lithium problem at the n-TOF facility at CERN

Opened Access 7Be(n,α) and 7Be(n,p) cross-section measurement for the cosmological lithium problem at the n-TOF facility at CERN

Citas

buscar en

Estadísticas
Icon
Exportar a
Autor: Barbagallo, M.
Colonna, Nicola
Aberle, Oliver
Andrzejewski, Józef
Audouin, Laurent
Bécares, Vicente
Bacak, M.
Balibrea, J.
Barros, Sílvia
Bečvář, František
Cortés Giraldo, Miguel Antonio
Departamento: Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear
Fecha: 2017
Tipo de documento: Artículo
Resumen: The Cosmological Lithium Problem refers to the large discrepancy between the abundance of primordial 7Li predicted by the standard theory of Big Bang Nucleosynthesis and the value inferred from the so-called “Spite plateau” in halo stars. A possible explanation for this longstanding puzzle in Nuclear Astrophysics is related to the incorrect estimation of the destruction rate of 7Be, which is responsible for the production of 95% of primordial Lithium. While charged-particle induced reactions have mostly been ruled out, data on the 7Be(n,α) and 7Be(n,p) reactions are scarce or completely missing, so that a large uncertainty still affects the abundance of 7Li predicted by the standard theory of Big Bang Nucleosynthesis. Both reactions have been measured at the n TOF facility at CERN, providing for the first time data in a wide neutron energy range.
Tamaño: 245.3Kb
Formato: PDF

URI: https://hdl.handle.net/11441/69583

DOI: 10.1051/epjconf/201714601012

Ver versión del editor

Mostrar el registro completo del ítem


Esta obra está bajo una Licencia Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internacional

Este registro aparece en las siguientes colecciones