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Measurement of 73^{73}Ge(n,γn,γ) cross sections and implications for stellar nucleosynthesis

Abstract

International audience73 Ge( n,γ ) cross sections were measured at the neutron time-of-flight facility n_TOF at CERN up to neutron energies of 300 keV, providing for the first time experimental data above 8 keV. Results indicate that the stellar cross section at kT=30 keV is 1.5 to 1.7 times higher than most theoretical predictions. The new cross sections result in a substantial decrease of 73 Ge produced in stars, which would explain the low isotopic abundance of 73 Ge in the solar system

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Hal-Diderot

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Last time updated on 14/04/2021

This paper was published in Hal-Diderot.

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