PT Journal
AU n_TOF Collaboration (Lederer-Woods, Cea
   Domingo-Pardo, C
   Tain, JL
   Tarifeño-Saldivia, A
TI Measurement of Ge-73(n, gamma) cross sections and implications for stellar nucleosynthesis
SO Physics Letters B
JI Phys. Lett. B
PY 2019
BP 458
EP 465
VL 790
DI 10.1016/j.physletb.2019.01.045
LA English
DE Nucleosynthesis; Neutron capture; s process; Germanium; n_TOF
AB Ge-73(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 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 Ge-73 produced in stars, which would explain the low isotopic abundance of Ge-73 in the solar system.
ER