Deformability as a Critical Factor in Initiating Fusion between Very Heavy Ions

Phys. Rev. Lett. 47, 1248 – Published 2 November 1981
H. Sann, R. Bock, Y. T. Chu, A. Gobbi, A. Olmi, U. Lynen, W. Müller, S. Bjørnholm, and H. Esbensen


Fusion reactions are initiated by capture of two incident nuclei to form a quasistable dinuclear complex. Excitation functions for such capture reactions have been measured in bombardments with Pb208 on targets of Mg26, Al27, Ca48, Ti50, Cr52, and Fe58. Compared with standard fusion models, based on the interaction of rigid spheres, the experiments show major deviations. These are explained by a dynamical model that takes deformations induced upon contact into account.


  • Received 24 February 1981
  • Published in the issue dated 2 November 1981

© 1981 The American Physical Society

Authors & Affiliations

H. Sann, R. Bock, Y. T. Chu*, A. Gobbi, and A. Olmi

  • Gesellschaft für Schwerionenforschung, D-6100 Darmstadt, West Germany

U. Lynen and W. Müller

  • Max-Planck-Institut für Kernphysik, D-6100 Heidelberg, West Germany

S. Bjørnholm and H. Esbensen

  • The Niels Bohr Institute, University of Copenhagen and NORDITA, DK-2100 Copenhagen Ø, Denmark

  • *On leave from Institute of Nuclear Physics, Lanchow, People's Republic of China.

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