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Light and heavy transfer products in Xe136+U238 multinucleon transfer reactions

Abstract : Background: Multinucleon transfer reactions (MNT) are a competitive tool to populate exotic neutron-rich nuclei in a wide region of nuclei, where other production methods have severe limitations or cannot be used at all. Purpose: Experimental information on the yields of MNT reactions in comparison with theoretical calculations are necessary to make predictions for the production of neutron-rich heavy nuclei. It is crucial to determine the fraction of MNT reaction products which are surviving neutron emission or fission at the high excitation energy after the nucleon exchange. Method: Multinucleon transfer reactions in Xe136+U238 have been measured in a high-resolution γ-ray/particle coincidence experiment. The large solid-angle magnetic spectrometer PRISMA coupled to the high-resolution Advanced Gamma Tracking Array (AGATA) has been employed. Beamlike reaction products after multinucleon transfer in the Xe region were identified and selected with the PRISMA spectrometer. Coincident particles were tagged by multichannel plate detectors placed at the grazing angle of the targetlike recoils inside the scattering chamber. Results: Mass yields have been extracted and compared with calculations based on the grazing model for MNT reactions. Kinematic coincidences between the binary reaction products, i.e., beamlike and targetlike nuclei, were exploited to obtain population yields for nuclei in the actinide region and compared to x-ray yields measured by AGATA. Conclusions: No sizable yield of actinide nuclei beyond Z=93 is found to perform nuclear structure investigations. In-beam γ-ray spectroscopy is feasible for few-neutron transfer channels in U and the −2p channel populating Th isotopes.
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Contributor : Dominique Girod Connect in order to contact the contributor
Submitted on : Tuesday, June 1, 2021 - 8:35:20 AM
Last modification on : Monday, December 13, 2021 - 9:15:58 AM


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A. Vogt, B. Birkenbach, P. Reiter, L. Corradi, T. Mijatović, et al.. Light and heavy transfer products in Xe136+U238 multinucleon transfer reactions. Physical Review C, American Physical Society, 2015, 92, pp.024619. ⟨10.1103/PhysRevC.92.024619⟩. ⟨in2p3-01198933⟩



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