Fusion barrier distributions in systems with finite excitation energy

Details Fusion barrier distributions in systems with finite excitation energy Fusion barrier distributions in systems with finite excitation energy

1997-06-24

arxiv.org/abs/nucl-th/9706060v1

Phys.Rev.C56:2104-2108,1997

Physics

Nuclear Physics

Nuclear Theory

9 pages, 4 figures, Submitted to Physical Review C

Scientific paper

10.1103/PhysRevC.56.2104

Eigen-channel approach to heavy-ion fusion reactions is exact only when the excitation energy of the intrinsic motion is zero. In order to take into account effects of finite excitation energy, we introduce an energy dependence to weight factors in the eigen-channel approximation. Using two channel problem, we show that the weight factors are slowly changing functions of incident energy. This suggests that the concept of the fusion barrier distribution still holds to a good approximation even when the excitation energy of the intrinsic motion is finite. A transition to the adiabatic tunneling, where the coupling leads to a static potential renormalization, is also discussed.

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