5 papers
Activated decay of a metastable state: Transient times for small and large dissipation
Maria Chushnyakova, Igor Gontchar, Natalya Khmyrova
The time evolution of the thermally activated decay rates is considered. This evolution is of particular importance for the recent nanoscale experiments discussed in the literature…
Fission rate of excited nuclei at variable friction in the energy diffusion regime
Maria Chushnyakova, Igor Gontchar
Presently, it is well established that fission of excited nuclei is a dynamical process being a subject of fluctuations and dissipation. In the literature, there are indications th…
Above-barrier heavy-ion fusion cross-sections using the relativistic mean-field approach: case of spherical colliding nuclei
Maria V. Chushnyakova, Mrutunjaya Bhuyan, Igor I. Gontchar +1
The double folding (DF) approach is one of the widely used methods for finding nucleus-nucleus interaction potential. In the present work, the influence of the nuclear matter densi…
Testing the energy diffusion approximation for the escape of a Brownian particle from a potential pocket
Igor I. Gontchar, Maria V. Chushnyakova
For the first time, the energy diffusion approximation is confronted at the percent level with the exact numerical modeling of thermal decay of a metastable state. The latter is pe…
Probing the relativistic mean field effective NN forces for fusion of spherical colliding nuclei within a dynamical model
Maria Chushnyakova, Igor Gontchar, Natalya Khmyrova
For the first time, the precise data on the above barrier fusion (capture) cross-sections for the reactions involving spherical colliding nuclei are quantitatively analyzed using t…