arXiv:2003.08655·v1·Nuclear Theory
On the E2 admixture in the deexcitation of the 229mTh isomer
F. F. Karpeshin · M. B. Trzhaskovskaya · L. F. Vitushkin
Abstract
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 latest experimental data concerning the isomer: its energy together with the magnetic and quadrupole moments.
Comments: 13 pages, 1 figure. Delivered as talks at the 676. WE-Heraeus-Seminar on Novel optical clocks in atoms and nuclei, July 9 - 12, 2018 at the Physikzentrum, Bad Honnef, Germany, and KVNO-2019, April 15 - 19 at IAA RAS, 2019, Saint-Petersburg, Russia