Direct observation of first-chance fission of No258

D. Peterson, W. Loveland, O. Batenkov, M. Majorov, A. Veshikov, K. Aleklett, and C. Rouki
Phys. Rev. C 79, 044607 – Published 27 April 2009

Abstract

The multiplicities, angular correlations, and energy spectra of the neutrons associated with fission were measured for the reactions of Mg25,26+Th232 at Mg25 and Mg26 projectile energies of 132 and 148 MeV, respectively. From these data, we extracted a value of Γn/Γf for the first-chance fission of No258 at an excitation energy of 61 MeV. The implications of this result for understanding the survival probabilities of excited heavy nuclei formed in “hot” fusion reactions are discussed.

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  • Received 9 June 2008

DOI:https://doi.org/10.1103/PhysRevC.79.044607

©2009 American Physical Society

Authors & Affiliations

D. Peterson* and W. Loveland

  • Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, USA

O. Batenkov, M. Majorov, and A. Veshikov

  • V. G. Khlopin Radium Institute, St. Petersburg, Russia

K. Aleklett and C. Rouki

  • Uppsala University, Uppsala, Sweden

  • *Physics Division, Argonne National Laboratory, Argonne, Illinois, USA.

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Vol. 79, Iss. 4 — April 2009

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