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20 April 2024

» arxiv » 1512.6334

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Study of the 238U(d,p) surrogate reaction via the simultaneous measurement of gamma-decay and fission probabilities
Q. Ducasse ; B. Jurado ; M. Aïche ; P. Marini ; L. Mathieu ; A. Görgen ; M. Guttormsen ; A. C. Larsen ; T. Tornyi ; J. N. Wilson ; G. Barreau ; G. Boutoux ; S. Czajkowski ; F. Giacoppo ; F. Gunsing ; T.W. Hagen ; M. Lebois ; J. Lei ; V. Méot ; B. Morillon ; A. Moro ; T. Renstrøm ; O. Roig ; S. J. Rose ; O. Sérot ; S. Siem ; I. Tsekhanovich ; G. M. Tveten ; M. Wiedeking ;
Date:	20 Dec 2015
Abstract:	We investigated the 238U(d,p) reaction as a surrogate for the n + 238U reaction. For this purpose we measured for the first time the gamma-decay and fission probabilities of 239U* 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 and distorted-wave Born approximations were used to correct our data from detected protons originating from elastic and inelastic deuteron breakup. The corrected fission probability is in agreement with neutron-induced data, whereas the gamma-decay probability is much higher than the neutron-induced data. The performed statistical-model calculations are not able to explain these results.
Source:	arXiv, 1512.6334
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