73Ge(n,gamma) 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 keV is 1.5 to 1.7 times higher than most theoretical predictions. The new cross sections result in a substantial decrease of 73Ge produced in stars, which would explain the low isotopic abundance of 73Ge in the solar system.
Lederer-Woods, C. [et al.]. Measurement of 73Ge(n,gamma) cross sections and implications for stellar nucleosynthesis. "Physics letters B", 10 Març 2019, vol. 790, p. 458-465.