Neutron Capture Cross Section of Unstable Ni-63: Implications for Stellar Nucleosynthesis

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10159449" target="_blank" >RIV/00216208:11320/13:10159449 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevLett.110.022501" target="_blank" >http://dx.doi.org/10.1103/PhysRevLett.110.022501</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevLett.110.022501" target="_blank" >10.1103/PhysRevLett.110.022501</a>

Result language
angličtina
Original language name
Neutron Capture Cross Section of Unstable Ni-63: Implications for Stellar Nucleosynthesis
Original language description
The Ni-63(n, gamma) 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 averagedcross sections were calculated for thermal energies from kT = 5-100 keV with uncertainties around 20%. Stellar model calculations for a 25M(circle dot) star show that the new data have a significant effect on the s-process production of Cu-63, Ni-64, and Zn-64 in massive stars, allowing stronger constraints on the Cu yields from explosive nucleosynthesis in the subsequent supernova. DOI: 10.1103/PhysRevLett.110.022501
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BG - Nuclear, atomic and molecular physics, accelerators
OECD FORD branch
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Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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