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Tuning the Re/Os Clock: Stellar-Neutron Cross Sections

  • A. Mengoni (a1), M. Mosconi (a2), K. Fujii (a3), F. Käppeler (a4) and The n_TOF Collaboration (a5)...

Abstract

The neutron-capture cross sections of 186,187Os have been recently measured at the CERN neutron time-of-flight facility n_TOF for an improved evaluation of the Re/Os cosmo-chronometer. This experimental information was complemented by nuclear model calculations for obtaining the proper astrophysical reaction rates at s-process temperatures. The calculated results and their implications for the determination of the time-duration of nucleosynthesis during galactic chemical evolution is discussed.

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Copyright

Corresponding author

C Corresponding author. Email: a.mengoni@iaea.org

References

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Keywords

Tuning the Re/Os Clock: Stellar-Neutron Cross Sections

  • A. Mengoni (a1), M. Mosconi (a2), K. Fujii (a3), F. Käppeler (a4) and The n_TOF Collaboration (a5)...

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