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Investigation of the surrogate-reaction method via the simultaneous measurement of gamma-emission and fission probabilities

B. Jurado ; P. Marini ; L. Mathieu ; M. Aiche ; S. Czajkowski ; I. Tsekhanovich ; L. Audouin ; G. Boutoux ; D. Denis-Petit ; M. Guttormsen ; G. Kessedjian ; M. Lebois ; V. Méot ; Andreas Oberstedt (Institutionen för fysik (Chalmers)) ; S. Oberstedt ; O. Roig ; O. Sérot ; L. Tassan-Got ; J.N. Wilson
2016 International Conference on Nuclear Data for Science and Technology, ND 2016, Bruges, Belgium, 11-16 September 2016 (2101-6275). Vol. 146 (2017),
[Konferensbidrag, refereegranskat]

We present the results of two experiments where we have measured for the first time simultaneously the fission and gamma-decay probabilities induced by different surrogate reactions. In particular, we have investigated the 238 U(d,p), 238 U( 3 He,t) and 238 U( 3 He, 4 He) reactions as surrogates for the neutron-induced n + 238 U, n + 237 Np and n + 236 U reactions, respectively. In the region where gamma emission, neutron emission and fission compete, our results for the fission probabilities agree fairly well with the neutron-induced data, whereas our gamma-decay probabilities are significantly higher than the neutron-induced data. The interpretation of these results is not obvious and is discussed within the framework of the statistical model with preliminary results for calculated spin-parity distributions populated in surrogate reactions. We also present future plans for surrogate-reaction studies in inverse kinematics with radioactive-ion beams at storage rings.

Denna post skapades 2017-10-25. Senast ändrad 2017-10-25.
CPL Pubid: 252753


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