Neutron capture cross sections for the Re/Os clock
The radioactive decay of (187)Re -> (187)Os (t(1/2) = 43 Gyr) is suited for dating the onset of heavy-element nucleosynthesis. The radiogenic contribution to the (187)Os abundance is the difference between the natural abundance and the corresponding s-process component. This component can be obtained via the well-established sigma N systematics using the neighboring s-only isotope (186)Os, provided the neutron-capture cross sections of both isotopes are known with sufficient accuracy. We report on a new set of experiments performed with a C(6)D(6) detector array at the n_TOF neutron spallation facility of CERN. The capture cross sections of (186)Os, (187)Os, and (188)Os have been measured in the neutron-energy range between 1 eV and 1 MeV, and Maxwellian-averaged cross sections were deduced for the relevant thermal energies from kT = 5 keV to 100 keV.
| Item Type | Other |
|---|---|
| Keywords | W-185; ISOTOPES; COSMOCHRONOLOGY; S-PROCESS; NUCLEOSYNTHESIS |
| Date Deposited | 29 May 2025 09:03 |
| Last Modified | 29 May 2025 09:03 |
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- Mosconi, M.
- Mengoni, A.
- Heil, M.
- Kappeler, F.
- Aerts, G.
- Terlizzi, R.
- Abbondanno, U.
- Alvarez, H.
- Alvarez-Velarde, F.
- Andriamojie, S.
- Andrzejewski, J.
- Assimakopoulos, R.
- Audouin, L.
- Badurek, G.
- Baumann, P.
- Becvar, F.
- Benlliure, J.
- Berthoumieux, E.
- Calvino, F.
- Cano-Ott, D.
- Capote, R.
- de Albornoz, A.C.
- Cennini, R.
- Chiaveri, E.
- Colonna, N.
- Cortes, G.
- Cortina, D.
- Couture, A.
- Cox, J.
- David, S.
- Dolfini, R.
- Domingo-Pardo, C.
- Dridi, W.
- Duran, R.B.
- Embid-Segura, M.
- Ferrant, L.
- Ferrari, A.
- Fitzpatrick, L.
- Ferreira-Marques, R.
- Frais-Kolbl, H.
- Fujii, K.
- Furman, W.
- Guerrero, C.
- Goncalves, I. F.
- Gallino, R.
- Gonzalez-Romero, E.
- Goverdovski, A.
- Gramegna, F.
- Griesmayer, E.
- Gunsing, F.
- Haas, B.
- Haight, R.
- Herrera-Martinez, A.
- Igashira, M.
- Isaev, S.
- Jericha, E.
- Kadi, Y.
- Karamanis, D.
- Karadimos, D.
- Kerveno, M.
- Ketlerov, V.
- Koehler, R.
- Konovalov, V.
- Kossionides, E.
- Krticka, M.
- Lamboudis, C.
- Leeb, H.
- Lindote, A.
- Lopes, I.
- Lozano, M.
- Lukic, S.
- Marganiec, J.
- Marques, L.
- Martone, S.
- Mastinu, R.
- Milazzo, R.
- Moreau, C.
- Neves, F.
- Oberhummer, H.
- O'Brien, S.
- Oshima, M.
- Pancin, J.
- Papachristodoulou, C.
- Papadopoulos, C.
- Paradela, C.
- Patronis, N.
- Pavlik, A.
- Pavlopoulos, R.
- Perrot, L.
- Plag, R.
- Plompen, A.
- Plukis, A.
- Poch, A.
- Pretel, C.
- Quesada, J.
- Rauscher, T.
- Reifarth, R.
- Rosetti, M.
- Rubbia, C.
- Rudolf, G.
- Rullhusen, R.
- Salgado, J.
- Sarchiapone, L.
- Stephan, C.
- Tagliente, G.
- Tain, J. L.
- Tassan-Got, L.
- Tavora, L.
- Vannini, G.
- Vaz, R.
- Ventura, A.
- Villamarin, D.
- Vincente, M. C.
- Vlachoudis, V.
- Vlastou, R.
- Voss, F.
- Wendle, H.
- Wiescher, Michael
- Wisshak, K.