Study of the 238U(d,p) surrogate reaction via the simultaneous measurement of gamma-decay and fission probabilities

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.
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Physical Review C, American Physical Society, 2016, 94, pp.024614. 〈10.1103/PhysRevC.94.024614〉
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http://hal.in2p3.fr/in2p3-01272358
Contributeur : Sophie Heurteau <>
Soumis le : mercredi 10 février 2016 - 16:37:50
Dernière modification le : lundi 15 octobre 2018 - 15:54:03

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Q. Ducasse, B. Jurado, M. Aïche, P. Marini, L. Mathieu, et al.. Study of the 238U(d,p) surrogate reaction via the simultaneous measurement of gamma-decay and fission probabilities. Physical Review C, American Physical Society, 2016, 94, pp.024614. 〈10.1103/PhysRevC.94.024614〉. 〈in2p3-01272358〉

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