DUCASSE, Q.; JURADO, B.; AÏCHE, M.; MARINI, P.; MATHIEU, L.; GÖRGEN, A.; GUTTORMSEN, M.; LARSEN, A. C.; TORNYI, T.; WILSON, J. N.; BARREAU, G.; BOUTOUX, G.; CZAJKOWSKI, S.; GIACOPPO, F.; GUNSING, F.; HAGEN, T. W.; LEBOIS, M.; LEI, J.; MÉOT, V.; MORILLON, B.; MORO, A. M.; RENSTRØM, T.; ROIG, O.; ROSE, S. J.; SEROT, Olivier; SIEM, S.; TSEKHANOVICH, I.; TVETEN, G. M.; WIEDEKING, M.

doi:10.1103/PhysRevC.94.024614

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DUCASSE, Q.
Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
CEA Cadarache

JURADO, B.
Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]

AÏCHE, M.
Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]

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Physical Review C. 2016-08, vol. 94, n° 2, p. 024614

American Physical Society

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We investigated the U238(d,p) reaction as a surrogate for the n+U238 reaction. For this purpose we measured for the first time the γ-decay and fission probabilities of U∗239 simultaneously and compared them to the corresponding neutron-induced data. We present the details of the procedure to infer the decay probabilities, as well as a thorough uncertainty analysis, including parameter correlations. Calculations based on the continuum-discretized coupled-channels method and the distorted-wave Born approximation (DWBA) were used to correct our data from detected protons originating from elastic and inelastic deuteron breakup. In the region where fission and γ emission compete, the corrected fission probability is in agreement with neutron-induced data, whereas the γ-decay probability is much higher than the neutron-induced data. We have performed calculations of the decay probabilities with the statistical model and of the average angular momentum populated in the U238(d,p) reaction with the DWBA to interpret these results.< Leer menos

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Investigation of the U238(d,p) surrogate reaction via the simultaneous measurement of γ-decay and fission probabilities

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