Adiabatic Quantum Tunneling in Heavy-Ion Sub-barrier Fusion

K. Hagino, N. Takigawa, M. Dasgupta, D. J. Hinde, and J. R. Leigh
Phys. Rev. Lett. 79, 2014 – Published 15 September 1997
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Abstract

The measured fusion barrier distributions for C40a+O192s, 194Pt show significant features due to projectile excitation, while none are seen for O16+S144m. This conflict is reconciled using realistic coupled-channel calculations, which show that the higher excitation energy of the 3 state in 16O produces an adiabatic potential renormalization, without affecting the structure in the barrier distribution. This result indicates that adiabatic effects restrict, in a natural way, the states which influence the shape of a fusion barrier distribution.

  • Received 10 February 1997

DOI:https://doi.org/10.1103/PhysRevLett.79.2014

©1997 American Physical Society

Authors & Affiliations

K. Hagino1, N. Takigawa1, M. Dasgupta2, D. J. Hinde2, and J. R. Leigh2

  • 1Department of Physics, Tohoku University, Sendai 980-77, Japan
  • 2Department of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, Australian Capital Territory 0200, Australia

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Vol. 79, Iss. 11 — 15 September 1997

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