Measurement of the ${}^{136}$Xe two-neutrino double beta decay half-life
via direct background subtraction in NEXT
Measurement of the ${}^{136}$Xe two-neutrino double beta decay half-life
via direct background subtraction in NEXT
We report a measurement of the half-life of the ${}^{136}$Xe two-neutrino double beta decay performed with a novel direct background subtraction technique. The analysis relies on the data collected with the NEXT-White detector operated with ${}^{136}$Xe-enriched and ${}^{136}$Xe-depleted xenon, as well as on the topology of double-electron tracks. With a …