Cancelled Advances in Background Elimination in Neutrinoless Double Beta Decay Searches

by Adam Redwine

Ben Gurion University
at Particles and Fields Seminar

Mon, 24 Jun 2024, 14:00
Sacta-Rashi Building for Physics (54), room 207


This presentation details advances in background elimination for technology developed by the NEXT Collaboration in the search for neutrinoless double beta decay in xenon-136. The high pressure gas TPCs used in this search provide an extended ionizing particle track susceptible to topological analysis. Fundamental differences in the nature of events can be exploited to discriminate signal from background. Improvements in the resolution of these signatures has prompted re-evaluation including identification of the relative importance of discriminating features and a novel algorithm to perform the analysis.

In parallel, NEXT is developing technology to provide a fundamentally independent signature via detection of the barium daughter product using single molecule fluorescence imaging. In support of these efforts, a reliable, high intensity source of doubly ionized barium of thermal energy in gas is under development. The algorithm described above as well as the status and early results of the ion production system will be discussed.

Created on 20-06-2024 by Citron, Zvi (zhcitron)
Updaded on 24-06-2024 by Citron, Zvi (zhcitron)