Charge-pickup of 238U at relativistic energies

Authors: Th. Rubehn, R. Bassini, M. Begemann-Blaich, Th. Blaich, A. Ferrero, C. Gross, G. Immé, I. Iori, G.J. Kunde, W.D. Kunze, V. Lindenstruth, U. Lynen, T. Möhlenkamp, L.G. Moretto, W.F.J. Müller, B. Ocker, J. Pochodzalla, G. Raciti, S. Reito, H. Sann, A. Schüttauf, W. Seidel, V. Serfling, W. Trautmann, A. Trzcinski, G. Verde, A. Wörner, E. Zude, and B. Zwieglinski
Published: Phys. Rev. C53(1996)993 [->Spires]
Preprint GSI-95-60
Abstract: Cross sections for the charge-pickup of 238U projectiles were measured at E/A = 600 and 1000~MeV for seven different targets (Be, C, Al, Cu, In, Au and U). Events with two fission fragments with a sum charge of 93 in the exit channel were selected. Due to the significant excitation energy, the dominant part of produced Np nuclei fission instead of decaying to the ground state by evaporation. The observed cross sections can be well reproduced by intranuclear-cascade-plus-evaporation calculations and, therefore, confirm recent results that no exotic processes are needed to explain charge-pickup processes.

PACS: 25.75.+r, 25.70.Kk, 25.85.Ge, 27.90.+b

Paper: Postscript 13 pages with 4 embedded figures (150 kb)
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