[Back]

C. Lederer-Woods, U. Battino, C. Weiß, M. Bacak, E. Griesmayer, E. Jericha, P. Kavrigin, H. Leeb, -. n_TOF Collaboration et al.:
"Measurement of ⁷³Ge(n,γ) cross sections and implications for stellar nucleosynthesis";
Physics Letters B, 790 (2019), 458 - 465.

⁷³Ge(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 ⁷³Ge produced in stars, which would explain the low isotopic abundance of ⁷³Ge in the solar system.

Nucleosynthesis / Neutron capture / s process / Germanium / n_TOF

http://dx.doi.org/10.1016/j.physletb.2019.01.045