Repositorio de producción científica de la Universidad de Sevilla

Neutron capture cross section of unstable 63Ni: implications for stellar nucleosynthesis

Opened Access Neutron capture cross section of unstable 63Ni: implications for stellar nucleosynthesis

Citas

buscar en

Estadísticas
Icon
Exportar a
Autor: Quesada Molina, José Manuel
Lederer, C.
Massimi, C.
Altstadt, S.
Andrzejewski, J.
Audouin, L.
Barbagallo, M.
Bécares, V.
Departamento: Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear
Fecha: 2013-01-08
Publicado en: Physical Review Letters, 110 (2), 022501-1-022501-5.
Tipo de documento: Artículo
Resumen: The 63Ni(n,γ) cross section has been measured for the first time at the neutron time-of-flight facility n_TOF at CERN from thermal neutron energies up to 200 keV. In total, capture kernels of 12 (new) resonances were determined. Maxwellian averaged cross sections were calculated for thermal energies from   kT=5–100  keV with uncertainties around 20%. Stellar model calculations for a 25M⊙ star show that the new data have a significant effect on the s-process production of 63Cu, 64Ni, and 64Zn in massive stars, allowing stronger constraints on the Cu yields from explosive nucleosynthesis in the subsequent supernova.
Cita: Quesada Molina, J.M., Lederer, C., Massimi, C., Altstadt, S., Andrzejewski, J., Audouin, L.,...,Bécares, V. (2013). Neutron capture cross section of unstable 63Ni: implications for stellar nucleosynthesis. Physical Review Letters, 110 (2), 022501-1-022501-5.
Tamaño: 527.6Kb
Formato: PDF

URI: http://hdl.handle.net/11441/62528

DOI: 10.1103/PhysRevLett.110.022501

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