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Light and heavy transfer products in Xe-136+U-238 multinucleon transfer reactions
Univ Cologne, Inst Kernphys, D-50937 Cologne, Germany..
Univ Cologne, Inst Kernphys, D-50937 Cologne, Germany..
Univ Cologne, Inst Kernphys, D-50937 Cologne, Germany..
Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Italy..
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2015 (English)In: Physical Review C. Nuclear Physics, ISSN 0556-2813, E-ISSN 1089-490X, Vol. 92, no 2, 024619Article in journal (Refereed) Published
Abstract [en]

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 Xe-136 + U-238 have been measured in a high-resolution gamma-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 gamma-ray spectroscopy is feasible for few-neutron transfer channels in U and the -2p channel populating Th isotopes.

Place, publisher, year, edition, pages
2015. Vol. 92, no 2, 024619
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-262980DOI: 10.1103/PhysRevC.92.024619ISI: 000360123600003OAI: oai:DiVA.org:uu-262980DiVA: diva2:856177
EU, FP7, Seventh Framework Programme, 262010-ENSAR
Available from: 2015-09-23 Created: 2015-09-23 Last updated: 2015-09-23Bibliographically approved

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Gengelbach, Aila
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Nuclear PhysicsDepartment of Physics and Astronomy
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