Record link: 
http://hdl.handle.net/20.500.12708/142716
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Title: 
Measurement of ⁷³Ge(n,γ) cross sections and implications for stellar nucleosynthesis
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Citation: 
Lederer-Woods, C., Battino, U., Weiß, C., Bacak, M., Griesmayer, E., Jericha, E., Kavrigin, P., Leeb, H., & n_TOF Collaboration. (2019). Measurement of 73Ge(n,γ) cross sections and implications for stellar nucleosynthesis. Physics Letters B, 790, 458–465. https://doi.org/10.1016/j.physletb.2019.01.045
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Publisher DOI: 
10.1016/j.physletb.2019.01.045
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Publication Type: 
Article - Short/Brief/Rapid Communication
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Language: 
English
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Authors: 
Lederer-Woods, Claudia 
Battino, Umberto 
Weiß, Christina 
Bacak, Michael 
Griesmayer, Erich 
Jericha, Erwin 
Kavrigin, Pavel 
Leeb, Helmut 
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Author Collaboration: 
n_TOF Collaboration
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Organisational Unit: 
E141-04 - Forschungsbereich Neutron- and Quantum Physics 
E141 - Atominstitut 
E141-03 - Forschungsbereich Nuclear and Particle Physics 
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Journal: 
Physics Letters B 
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ISSN: 
0370-2693
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Date (published): 
10-Mar-2019
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Number of Pages: 
8
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Publisher: 
ELSEVIER
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Peer reviewed: 
Yes
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Keywords: 
Nuclear and High Energy Physics; Nucleosynthesis; Neutron capture; s process; Germanium
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Abstract: 
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.
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Research Areas: 
Materials Characterization: 100%
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Science Branch: 
Physik, Astronomie
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