Fusion of Li9 with Pb208

A. M. Vinodkumar, W. Loveland, P. H. Sprunger, L. Prisbrey, M. Trinczek, M. Dombsky, P. Machule, J. J. Kolata, and A. Roberts
Phys. Rev. C 80, 054609 – Published 23 November 2009

Abstract

We have measured the fusion excitation function for the Li9+Pb208 reaction for near-barrier projectile center-of-mass energies of 23.9 to 43.0 MeV using the ISAC2 facility at TRIUMF. The α-emitting evaporation residues (At211214) were stopped in the Pb208 target, and their decay was measured. The isotopic yields at each energy were in good agreement with the predictions of a statistical model code (HIVAP). The measured fusion excitation function shows evidence for substantial sub-barrier fusion enhancement not predicted by current theoretical models. There is a suppression of the above barrier cross sections relative to these model predictions. The implications of this measurement for studying the fusion of Li11 with Pb208 are discussed.

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  • Received 1 August 2009

DOI:https://doi.org/10.1103/PhysRevC.80.054609

©2009 American Physical Society

Authors & Affiliations

A. M. Vinodkumar1,*, W. Loveland1, P. H. Sprunger1, L. Prisbrey1, M. Trinczek2, M. Dombsky2, P. Machule2, J. J. Kolata3, and A. Roberts3

  • 1Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, USA
  • 2TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
  • 3Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA

  • *Present address: Department of Physics, University of Calicut, Kerala 673635, India.

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Vol. 80, Iss. 5 — November 2009

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