The study of Gamow-Teller transition properties in R-process nuclei in the region of Z=28-50 by Pyatov method

In this study, the properties of Gamow-Teller transition in 100-130Ru isotopes have been studied by using Pyatov Method and considering particle-hole interaction (ph). In this respect, first of all, the GT ß- strength distiributions have been calculated for 100-130Ru isotopes. In the second part of the study, the log(ft) values for GT ß- transition of 100-130Ru isotopes and the log(ft) values for GT ß+ transition of 90-98Ru isotopes have been calculated and compared with the corresponding experimental values. According to our calculation results, GT fragmentation is seen over many states in Ru isotopes considered in this study as it was done in literature. Moreover, GT 1+ states have been concentrated on the energy range of 7.5-15 MeV in Ru isotopes up to A=122.