Beta-Decay Rate As an Important Factor of Production of Heavy Nuclei in the R-Process

In this work, nucleosynthesis of heavy nuclei in the r-process is modelled. The influence of beta-decay rates calculated within different theoretical models on abundance of heavy nuclei is studied. It is shown that dynamics of nucleosynthesis of new elements and final abundance of heavy nuclei strongly depend on the beta-decay model used in calculations of the r-process. A possibility of using astrophysical calculations for testing predicted nuclear data defined only theoretically is discussed.