Abstract
Electron capture decay of $^{229}\mathrm{U}$ is investigated by measuring the $\ensuremath{\gamma}$-ray and conversion electron spectra of mass-separated and unseparated $^{229}\mathrm{U}$ sources with high-resolution germanium and silicon detectors, respectively. Gamma-gamma coincidence measurements are also performed using germanium detectors. These studies provide level energies and level ordering in $^{229}\mathrm{Pa}$. Single-particle assignments are given to these levels which are in agreement with the systematics in this region and also with theory. In a previous study, we report the observation of a 5/${2}^{\ifmmode\pm\else\textpm\fi{}}$ parity doublet in the $^{229}\mathrm{Pa}$ ground state, which is a signature of octupole deformation. The present analysis of the data still shows a splitting of $60\ifmmode\pm\else\textpm\fi{}50$ eV, but with this large uncertainty the existence of the doublet is not certain.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
