## 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 reaches 4, any analytical rate is expected to agree to the dynamical quasistationary value R_{D} within 2 %. We performed modeling using four different potentials and found that the difference between the R_{O} and the R_{D} sometimes exceeds 20 %. Such discrepancy is not acceptable nowadays because it is comparable to the quantum, non-markovian and multidimensional effects. The features of the potentials used 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 shape of potential.

Original language | English |
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Title of host publication | 3rd International Conference on Current Problems in Nuclear Physics and Atomic Energy, NPAE 2010 - Proceedings |

Publisher | Kiev Institute for Nuclear Research,KINR |

Pages | 46-50 |

Number of pages | 5 |

Publication status | Published - 2011 |

Event | 3rd International Conference on Current Problems in Nuclear Physics and Atomic Energy, NPAE 2010 - Kyiv, Ukraine Duration: 7 Jun 2010 → 12 Jun 2010 |

### Other

Other | 3rd International Conference on Current Problems in Nuclear Physics and Atomic Energy, NPAE 2010 |
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Country | Ukraine |

City | Kyiv |

Period | 7.6.10 → 12.6.10 |

## ASJC Scopus subject areas

- Nuclear and High Energy Physics
- Atomic and Molecular Physics, and Optics