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Measurement of the 151Sm(n, γ) 152Sm cross section at n_TOF

The 151Sm(n, γ) 152Sm cross section, which is important for the interpretation of the 151Sm branching as an s-process thermometer, was measured from 1 eV up to 1 MeV at the innovative n_TOF facility at CERN. Based on these data, the Maxwellian-averaged cross section at k T = 30  keV is found to be 3...

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Published in:Nuclear physics. A 2005-07, Vol.758, p.533-536
Main Authors: Marrone, S., Abbondanno, U., Aerts, G., Alvarez-Velarde, F., Álvarez-Pol, H., Andriamonje, S., Andrzejewski, J., Badurek, G., Baumann, P., Bečvář, F., Benlliure, J., Berthoumieux, E., Cano-Ott, D., Capote, R., Cennini, P., Chepel, V., Chiaveri, E., Colonna, N., Cortes, G., Cortina, D., Couture, A., Cox, J., Dababneh, S., Dahlfors, M., David, S., Dolfini, R., Domingo-Pardo, C., Embid-Segura, M., Ferrant, L., Ferrari, A., Ferreira-Marques, R., Frais-Koelbl, H., Furman, W., Goncalves, I., Gallino, R., Goverdovski, A., Gramegna, F., Griesmayer, E., Gunsing, F., Haas, B., Haight, R., Heil, M., Isaev, S., Jericha, E., Käppeler, F., Kadi, Y., Karadimos, D., Kerveno, M., Ketlerov, V., Koehler, P., Konovalov, V., Krtička, M., Lamboudis, C., Leeb, H., Lindote, A., Lopes, I., Lozano, M., Lukic, S., Marganiec, J., Martinez-Val, J., Mastinu, P., Mengoni, A., Milazzo, P.M., Molina-Coballes, A., Moreau, C., Mosconi, M., O'Brien, S., Papaevangelou, T., Paradela, C., Pavlopoulos, P., Perlado, J.M., Perrot, L., Pignatari, M., Plompen, A., Plukis, A., Poch, A., Pretel, C., Quesada, J., Rapp, W., Rauscher, T., Reifarth, R., Rosetti, M., Rubbia, C., Rudolf, G., Rullhusen, P., Salgado, J., Scares, J.C., Stephan, C., Tagliente, G., Tassan-Got, L., Tavora, L., Vaz, P., Ventura, A., Villamarin, D., Vincente, M.C., Vlachoudis, V., Voss, F., Wendler, H., Wiescher, M., Wisshak, K.
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Language:English
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Summary:The 151Sm(n, γ) 152Sm cross section, which is important for the interpretation of the 151Sm branching as an s-process thermometer, was measured from 1 eV up to 1 MeV at the innovative n_TOF facility at CERN. Based on these data, the Maxwellian-averaged cross section at k T = 30  keV is found to be 3100±160 mb. This value can be used to constrain the thermodynamical conditions in Asymptotic Giant Branch (AGB) stars during He-shell burning.
ISSN:0375-9474
DOI:10.1016/j.nuclphysa.2005.05.096