3 papers
nucl-th2020
Effect of electron screening on the decay
F. F. Karpeshin, M. B. Trzhaskovskaya, L. F. Vitushkin
The physical principles that determine the effect of the electron shell of an atom on the alpha decay rate of the nucleus are presented. The effect is shown to be negative. Numeric…
nucl-th2020
The non-resonance shake mechanism of the neutrinoless double electronic capture
F. F. Karpeshin, M. B. Trzhaskovskaya, L. F. Vitushkin
It is generally accepted that double neutrinoless electron capture is a resonance process. The calculations of the probability of shaking with the ionization of the electron shell…
nucl-th2020
On the E2 admixture in the deexcitation of the 229mTh isomer
F. F. Karpeshin, M. B. Trzhaskovskaya, L. F. Vitushkin
Latest experimental data on the properties of the 229Th nuclide isomer are analyzed. Deduced are the lifetime and the E2-fraction in its electromagnetic deexcitation, based on the…