Measurement of the cross section up to 200 keV at the n_TOF facility at CERN
| Autor: | Sosnin, N V, Lederer-Woods, C, Krtička, M, Garg, R, Dietz, M, Bacak, M, Barbagallo, M, Battino, U, Cristallo, S, Damone, L A, Diakaki, M, Heinitz, S, Macina, D, Mastromarco, M, Mingrone, F, St J Murphy, A, Tagliente, G, Valenta, S, Vescovi, D, Aberle, O, Alcayne, V, Amaducci, S, Andrzejewski, J, Audouin, L, Bécares, V, Babiano-Suarez, V, Bečvář, F, Bellia, G, Berthoumieux, E, Billowes, J, Bosnar, D, Brown, A, Busso, M, Caamaño, M, Caballero, L, Calviño, F, Calviani, M, Cano-Ott, D, Casanovas, A, Cerutti, F, Chen, Y H, Chiaveri, E, Colonna, N, Cortés, G, Cortés-Giraldo, M A, Cosentino, L, Domingo-Pardo, C, Dressler, R, Dupont, E, Durán, I, Eleme, Z, Fernández-Domínguez, B, Ferrari, A, Finocchiaro, P, Göbel, K, Gawlik-Ramięga, A, Gilardoni, S, Glodariu, T, Gonçalves, I F, González-Romero, E, Guerrero, C, Gunsing, F, Harada, H, Heyse, J, Jenkins, D G, Jericha, E, Käppeler, F, Kadi, Y, Kimura, A, Kivel, N, Kokkoris, M, Kurtulgil, D, Ladarescu, I, Leeb, H, Lerendegui-Marco, J, Meo, S Lo, Lonsdale, S J, Manna, A, Martínez, T, Masi, A, Massimi, C, Mastinu, P, Matteucci, F, Maugeri, E A, Mazzone, A, Mendoza, E, Mengoni, A, Michalopoulou, V, Milazzo, P M, Musumarra, A, Negret, A, Nolte, R, Ogállar, F, Oprea, A, Patronis, N, Pavlik, A, Perkowski, J, Piersanti, L, Porras, I, Praena, J, Quesada, J M, Radeck, D, Ramos-Doval, D, Rauscher, T, Reifarth, R, Rochman, D, Rubbia, C, Sabaté-Gilarte, M, Saxena, A, Schillebeeckx, P, Schumann, D, Smith, A G, Stamatopoulos, A, Tain, J L, Talip, T, Tarifeño-Saldivia, A, Tassan-Got, L, Torres-Sánchez, P, Tsinganis, A, Ulrich, J, Urlass, S, Vannini, G, Variale, V, Vaz, P, Ventura, A, Vlachoudis, V, Vlastou, R, Wallner, A, Woods, P J, Wright, T, Žugec, P |
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| Přispěvatelé: | Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), n_TOF |
| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Phys.Rev.C Phys.Rev.C, 2023, 107 (6), pp.065805. ⟨10.1103/PhysRevC.107.065805⟩ |
| Popis: | International audience; The Se77(n,γ) reaction is of importance for Se77 abundance during the slow neutron capture process in massive stars. We have performed a new measurement of the Se77 radiative neutron capture cross section at the Neutron Time-of-Flight facility at CERN. Resonance capture kernels were derived up to 51 keV and cross sections up to 200 keV. Maxwellian-averaged cross sections were calculated for stellar temperatures between kT=5keV and kT=100keV, with uncertainties between 4.2% and 5.7%. Our results lead to substantial decreases of 14% and 19% in Se77 abundances produced through the slow neutron capture process in selected stellar models of 15M⊙ and 2M⊙, respectively, compared to using previous recommendation of the cross section. |
| Databáze: | OpenAIRE |
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