Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2003-04-07
Phys.Rev. C68 (2003) 014606
Physics
Nuclear Physics
Nuclear Theory
7 pages, LaTex, 7 postscript figures; Keywords: Decay rate, mean first passage time
Scientific paper
10.1103/PhysRevC.68.014606
A schematic model of over-damped motion is presented which permits one to calculate the mean first passage time for nuclear fission. Its asymptotic value may exceed considerably the lifetime suggested by Kramers rate formula, which applies only to very special, favorable potentials and temperatures. The additional time obtained in the more general case is seen to allow for a considerable increment in the emission of light particles.
Hofmann Helmut
Magner Alexander G.
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