### Abstract

We compare results of dynamical modeling of the fission process with predictions of the Kramers formulas. For the case of large dissipation these are two: the integral rate R_{I} and its approximation R_{O} . As the ratio of the fission barrier height B_{f} to the temperature T, ε, reaches 4, any analytical rate is expected to agree with the dynamical quasistationary value R_{D} within 2%. We perform modeling using several potentials and find that the difference between the R_{O} and the R_{D} sometimes exceeds 20% even for ε > 4. Such discrepancy is not acceptable nowadays because it is comparable to the quantum, non-markovian and multidimensional effects. The features of the potentials which cause this disagreement are identified and studied. It is demonstrated that this is the R_{I}, not the R_{O}, which meets the expectation above irrespectively of the potential profile.

Original language | English |
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Article number | 082023 |

Journal | Journal of Physics: Conference Series |

Volume | 312 |

Issue number | SECTION 8 |

DOIs | |

Publication status | Published - 2011 |

### ASJC Scopus subject areas

- Physics and Astronomy(all)

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## Cite this

*Journal of Physics: Conference Series*,

*312*(SECTION 8), [082023]. https://doi.org/10.1088/1742-6596/312/8/082023