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First experimental determination of the 40Ar( $n, 2 n$ )39Ar reaction cross section and 39Ar production in Earth’s atmosphere

https://doi.org/10.1016/j.gca.2025.12.041

Bhattacharya, S; Paul, M; Sahoo, RN; Purtschert, R; Hoffmann, HFR; Pichotta, M; Zuber, K; Bemmerer, D; Döring, T; Schwengner, R; et al (February 2026, Geochimica et Cosmochimica Acta)

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⁴⁰ Ar proposed as probe of neutron-induced reactions in a high-density stellar-like plasma at the National Ignition Facility

https://doi.org/10.1051/epjconf/202327913004

Paul, M.; Sahoo, R. N.; Tessler, M.; Jeet, J.; Velsko, C.; Zylstra, A.; Avila, M.; Dickerson, C.; Fougères, C.; Jayatissa, H.; et al (January 2023, EPJ Web of Conferences)
Freeman, S.; Lederer-Woods, C.; Manna, A.; Mengoni, A. (Ed.)
The thermodynamical conditions and the neutron density produced in a laser-induced implosion of a deuterium-tritium (DT) filled capsule at the National Ignition Facility (NIF) are the closest laboratory analog of stellar conditions. We plan to investigate neutron-induced reactions on 40 Ar, namely the 40 Ar( n , 2 n ) 39 Ar( t 1/2 =268 y), the 40 Ar( n , γ) 41 Ar(110 min) and the potential rapid two-neutron capture reaction 40 Ar(2 n , γ) 42 Ar(33 y) in an Ar-loaded DT capsule. The chemical inertness of noble gas Ar enables reliable collection of the reaction products.
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Photoexcitation of ${}^{76}{Ge}$

https://doi.org/10.1103/physrevc.105.024303

Schwengner, R.; Massarczyk, R.; Schmidt, K.; Zuber, K.; Beyer, R.; Bemmerer, D.; Hammer, S.; Hartmann, A.; Hensel, T.; Hoffmann, H. F.; et al (February 2022, Physical Review C)

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