Effect of tunneling on the one-body proximity friction
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The first incomplete moment of the proximity flux function, used in the one-body proximity friction and diffusion, is calculated exactly in a simple model. It is seen that the usual classical approximation underestimates appreciably the exact results. This shows the importance of the quantum tunneling. Good agreements to the exact calculation can be obtained by using the Wentzel-Kramers-Brillouin approximation. NUCLEAR REACTIONS: Deep inelastic collisions, one-body friction, proximity flux function, transmission probability, tunneling. © 1979 The American Physical Society.
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