Titolo: | Measurement of the 154Gd(n,γ) cross section and its astrophysical implications |
Autori: | Mazzone, A. CRISTALLO, Sergio Aberle, O. Alaerts, G. Alcayne, V. Amaducci, S. Andrzejewski, J. Audouin, L. Babiano-Suarez, V. Bacak, M. Barbagallo, M. Radeck, D. Ramos Doval, D. Reifarth, R. Rochman, D. Rubbia, C. Sabaté-Gilarte, M. SAXENA, AAYUSH Schillebeeckx, P. Schumann, D. Smith, A. G. Bécares, V. Sosnin, N. Stamatopoulos, A. Tagliente, G. Tain, J. L. Talip, Z. Tarifeño-Saldivia, A. E. Tassan-Got, L. Torres-Sánchez, P. Tsinganis, A. Ulrich, J. Bečvář, F. Urlass, S. Valenta, S. Vannini, G. Variale, V. Vaz, P. Ventura, A. VESCOVI, Diego Vlachoudis, V. Vlastou, R. Wallner, A. Bellia, G. Woods, P. J. Wynants, R. Wright, T. J. Žugec, P. Berthoumieux, E. Billowes, J. Bosnar, D. Brown, A. S. Busso, M. Caamaño, M. Caballero, L. Calviani, M. Calviño, F. Cano-Ott, D. Casanovas, A. Castelluccio, D. M. Cerutti, F. Chen, Y. H. Chiaveri, E. Clai, G. Colonna, N. Cortés, G. P. Cortés-Giraldo, M. A. Cosentino, L. Damone, L. A. Diakaki, M. Dietz, M. Domingo-Pardo, C. Dressler, R. Dupont, E. Durán, I. Eleme, Z. Fernández-Domíngez, B. Ferrari, A. Ferro-Gonçalves, I. Finocchiaro, P. Furman, V. Garg, R. Gawlik, A. Gilardoni, S. Glodariu, T. Göbel, K. González-Romero, E. Guerrero, C. Gunsing, F. Heinitz, S. Heyse, J. Jenkins, D. G. Jericha, E. Kadi, Y. Käppeler, F. Kimura, A. Kivel, N. Kokkoris, M. Kopatch, Y. Kopecky, S. Krtička, M. Kurtulgil, D. Ladarescu, I. Lederer-Woods, C. Lerendegui-Marco, J. Lo Meo, S. Lonsdale, S. -J. Macina, D. Manna, A. Martínez, T. Masi, A. Massimi, C. Mastinu, P. F. Mastromarco, M. Matteucci, F. Maugeri, E. Mendoza, E. Mengoni, A. Michalopoulou, V. Milazzo, P. M. Mingrone, F. Mucciola, R. Musumarra, A. Negret, A. Nolte, R. Ogállar, F. Oprea, A. Patronis, N. Pavlik, A. Perkowski, J. PIERSANTI, Luciano Porras, I. Praena, J. Quesada, J. M. |
Data pubblicazione: | 2020 |
Rivista: | PHYSICS LETTERS. SECTION B |
Numero: | 804 |
Da pagina:: | 135405 |
Abstract: | The neutron capture cross section of <SUP>154</SUP>Gd was measured from 1 eV to 300 keV in the experimental area located 185 m from the CERN n_TOF neutron spallation source, using a metallic sample of gadolinium, enriched to 67% in <SUP>154</SUP>Gd. The capture measurement, performed with four C<SUB>6</SUB>D<SUB>6</SUB> scintillation detectors, has been complemented by a transmission measurement performed at the GELINA time-of-flight facility (JRC-Geel), thus minimising the uncertainty related to sample composition. An accurate Maxwellian averaged capture cross section (MACS) was deduced over the temperature range of interest for s process nucleosynthesis modelling. We report a value of 880(50) mb for the MACS at kT = 30 keV, significantly lower compared to values available in literature. The new adopted <SUP>154</SUP>Gd(n,γ) cross section reduces the discrepancy between observed and calculated solar s-only isotopic abundances predicted by s-process nucleosynthesis models. |
URI: | http://hdl.handle.net/20.500.12386/29924 |
URL: | http://arxiv.org/abs/2002.02322v1 https://www.sciencedirect.com/science/article/pii/S0370269320302094?via%3Dihub |
ISSN: | 0370-2693 |
DOI: | 10.1016/j.physletb.2020.135405 |
Bibcode ADS: | 2020PhLB..80435405M |
Fulltext: | open |
È visualizzato nelle collezioni: | 1.01 Articoli in rivista
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