Speaker
Description
A search for rare nuclear decays of the naturally occurring osmium isotopes accompanied by $\gamma$ quanta has been performed using an ultra-low-background germanium $\gamma$ detectors and an ultrapure osmium sample at the Gran Sasso National Laboratory of the INFN (Italy).
The final results on the 2$\beta$ and $\alpha$ decays of osmium isotopes obtained in three experimental stages will be presented in this talk.
During the data taking with the $\gamma$ detector, no effect has been detected, and lower limits of the half-life of the naturally occurring osmium isotopes relative to $\alpha$ and $2\beta$ decays of $^{184}$Os and $^{192}$Os were set at the level of $10^{15}–10^{20}$ yr.
In the case of $\alpha$ decays of $^{184}$Os and $^{186}$Os to the first excited levels of daughter nuclei, the limits substantially exceed the present theoretical estimates of the decays probabilities. New experimental perspectives to detect the $\alpha$ decays of $^{184}$Os and $^{186}$Os and improve the experimental sensitivity to the $2\beta$ processes in $^{184}$Os and $^{192}$Os will be discussed.
Details
Vincenzo Caracciolo, Ph.D., University of Rome Tor Vergata, Italy, https://www.fisica.uniroma2.it/
| Is this abstract from experiment? | Yes |
|---|---|
| Name of experiment and experimental site | N/A |
| Is the speaker for that presentation defined? | Yes |
| Internet talk | Yes |
