| Автор | A E Gettinger |
| Автор | I I Gontchar |
| Дата выпуска | 2000-04-01 |
| dc.description | The approximation of overdamping is shown to provide an adequate description of the dynamics of fission of excited atomic nuclei. This approximation corresponds to the regime when the collective momentum p relaxes much faster than the conjugate collective coordinate q . The applicability of the approximation is tested in the framework of a one-dimensional stochastic model. The fission rate R <sub>f</sub> , which is the most important characteristic of the fission process, is calculated by means of: (i) the two stochastic equations for p and q (`complete equations'), and (ii) the one stochastic equation for q (`reduced equation'). The value of R <sub>f</sub> calculated by means of the reduced equation turns out to depend upon the so-called interpretation. The interpretation is simply the numerical scheme applied for the computer simulation. In the physical problem considered for the complete equations there is no such dependence. However, use of the reduced equation substantially decreases the necessary computer time allowing us to create a model which can be used by the experimenters. We have found an interpretation of the reduced equation which provides the values of R <sub>f</sub> in agreement with those obtained via complete equations to within 10%. Therefore, the approximation of overdamping is shown to be applicable in order to describe the dynamics of fission of excited atomic nuclei. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Is the approximation of overdamping applicable in order to describe the dynamics of fission of excited nuclei? |
| Тип | paper |
| DOI | 10.1088/0954-3899/26/4/301 |
| Electronic ISSN | 1361-6471 |
| Print ISSN | 0954-3899 |
| Журнал | Journal of Physics G: Nuclear and Particle Physics |
| Том | 26 |
| Первая страница | 347 |
| Последняя страница | 356 |
| Аффилиация | A E Gettinger; Omsk State Railway University, Prospect Marxa 35, 644046 Omsk, Russia |
| Аффилиация | I I Gontchar; Omsk State Railway University, Prospect Marxa 35, 644046 Omsk, Russia |
| Выпуск | 4 |
