Measurement of 73 Ge(n,γ) cross sections and implications for stellar nucleosynthesis
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Author
Lederer-Woods, C.
Battino, U.
Ferreira, P.
Gawlik, A.
Guerrero, C.
Gunsing, F.
Heinitz, S.
Lerendegui-Marco, J.
Mengoni, A.
Reifarth, R.
Tattersall, A.
Valenta, S.
Weiss, C.
Aberle, O.
Andrzejewski, J.
Audouin, L.
Bécares, V.
Bacak, M.
Balibrea, J.
Barbagallo, M.
Barros, S.
Bečvář, F.
Beinrucker, C.
Belloni, F.
Berthoumieux, E.
Billowes, J.
Bosnar, D.
Brugger, M.
Caamaño, M.
Calviño, F.
Calviani, M.
Cano-Ott, D.
Cerutti, F.
Chiaveri, E.
Colonna, N.
Cortés, G.
Cortés-Giraldo, M. A.
Cosentino, L.
Damone, L. A.
Deo, K.
Diakaki, M.
Dietz, M.
Domingo-Pardo, C.
Dressler, R.
Dupont, E.
Durán, I.
Fernández-Domínguez, B.
Ferrari, A.
Finocchiaro, P.
Frost, R. J.W.
Furman, V.
Göbel, K.
García, A. R.
Gheorghe, I.
Glodariu, T.
Gonçalves, I. F.
González-Romero, E.
Goverdovski, A.
Griesmayer, E.
Harada, H.
Heftrich, T.
Hernández-Prieto, A.
Heyse, J.
Jenkins, D. G.
Jericha, E.
Käppeler, F.
Kadi, Y.
Katabuchi, T.
Kavrigin, P.
Ketlerov, V.
Khryachkov, V.
Kimura, A.
Kivel, N.
Knapova, I.
Kokkoris, M.
Krtička, M.
Leal-Cidoncha, E.
Leeb, H.
Licata, M.
Lo Meo, S.
Losito, R.
Macina, D.
Marganiec, J.
Martínez, T.
Massimi, C.
Mastinu, P.
Mastromarco, M.
Matteucci, F.
Mendoza, E.
Milazzo, P. M.
Mingrone, F.
Mirea, M.
Montesano, S.
Musumarra, A.
Nolte, R.
Palomo-Pinto, F. R.
Paradela, C.
Patronis, N.
Pavlik, A.
Perkowski, J.
Porras, J. I.
Praena, J.
Quesada, J. M.
Rauscher, T.
Riego-Perez, A.
Robles, M.
Rubbia, C.
Ryan, J. A.
Sabaté-Gilarte, M.
Saxena, A.
Schillebeeckx, P.
Schmidt, S.
Schumann, D.
Sedyshev, P.
Smith, A. G.
Stamatopoulos, A.
Suryanarayana, S. V.
Tagliente, G.
Tain, J. L.
Tarifeño-Saldivia, A.
Tassan-Got, L.
Tsinganis, A.
Vannini, G.
Variale, V.
Vaz, P.
Ventura, A.
Vlachoudis, V.
Vlastou, R.
Wallner, A.
Warren, S.
Weigand, M.
Wright, T.
Žugec, P.
Attention
2299/21196
Abstract
73 Ge(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 73 Ge produced in stars, which would explain the low isotopic abundance of 73 Ge in the solar system.