Search for rare alpha and double beta decays of Yb isotopes to excited levels of daughter nuclei
- INFN-Lab. Nazionali del Gran Sasso, Assergi (Italy)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Department of Physics, Engineering Physics and Astronomy, Kingston, ON (Canada)
- Technische Univ. München (Germany); Queen's Univ., Kingston, ON (Canada)
A search for alpha and double beta decays of ytterbium isotopes was performed with an ultra low-background high purity germanium detector at Gran Sasso Underground Laboratory (Italy). A 194.7 g Yb2(C2O4)3 powder sample was measured for 11.3 days with a total Yb exposure of 1.25 kg×day. Half-life limits for α-decay modes of 168Yb, 170Yb, 171Yb, 172Yb, 173Yb, 174Yb and 176Yb into the first excited states have been obtained between 6 × 1014 years and 2 × 1016 years. These are the first experimental constraints of these decay modes. Double electron capture of 168Yb and double beta decay of 176Yb into the first excited 2+ and 0+ states could be excluded with limits between 1 × 1014 years to 8 × 1016 years. This improves the experimental information on some of the decay modes compared to previous constraints.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Grant/Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1853952
- Journal Information:
- European Physical Journal. C, Particles and Fields, Vol. 82, Issue 1; ISSN 1434-6044
- Publisher:
- SpringerCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Versatile ytterbium ion trap experiment for operation of scalable ion-trap chips with motional heating and transition-frequency measurements
First results on neutrinoless double beta decay of Te-130 with the calorimetric cuoricino experiment