Speaker
Cecilia Ferrari
(Istituto Nazionale di Fisica Nucleare)
Description
$^{214}$Pb represents one of the most common irreducible contaminant in rare-events physics experiments.
In the XENONnT experiment, a LXe dual-phase TPC for direct dark matter searches, $^{214}$Pb represents the dominant contribution in the electron recoil background below 40 keV.
This isotope undergoes beta decay into several $^{214}$Bi excited states, generating electron/gamma events in the detector.
For several precision physics searches in XENONnT, such as solar-pp neutrino flux measurement, the accuracy demanded on this isotope branching ratios are still not currently available in the literature.
In this study, by exploiting $^{222}$Rn calibration campaign, we report updated measurements of $^{214}$Pb branching ratios.
| Poster prize | Yes |
|---|---|
| Given name | Cecilia |
| Surname | Ferrari |
| First affiliation | Gran Sasso Science Institute |
| Second affiliation | Laboratori Nazionali del Gran Sasso |
| Institutional email | cecilia.ferrari@gssi.it |
| Gender | Female |
| Collaboration (if any) | XENON |
Primary author
Cecilia Ferrari
(Istituto Nazionale di Fisica Nucleare)
