Speaker
J. Renner
(Instituto de Física Corpuscular (IFIC), CSIC & Universitat de València)
Description
The NEXT (Neutrino Experiment with a Xenon TPC) experiment will search for neutrinoless double-beta ($0\nu\beta\beta$) decay in $^{136}$Xe with a high pressure xenon gas time projection chamber (TPC). Two principle advantages of the NEXT approach are good energy resolution and topology-based event classification. We describe initial results from the first phase of the experiment, the detector NEXT-White deployed in the Canfranc Underground Laboratory in the Spanish Pyrenees, demonstrating recent progress towards sub-1% energy resolution at the $^{136}$Xe double-beta Q-value. We also present the results of a topological analysis, using electron-positron pair events in place of the two-electron events expected from $0\nu\beta\beta$, which demonstrates how such events can be distinguished from background (single-electron) events of the same energy through the use of deep neural networks (DNNs).
| Authorship annotation | for the NEXT collaboration |
|---|---|
| Session and Location | Monday Session, Poster Wall #61 (Auditorium Gallery Right) |
| Poster included in proceedings: | yes |
Primary author
J. Renner
(Instituto de Física Corpuscular (IFIC), CSIC & Universitat de València)
Co-authors
F. Monrabal
(Department of Physics, University of Texas at Arlington; Donostia International Physics Center (DIPC))
G. Martínez-Lema
(Instituto Gallego de Física de Altas Energías, Univ. de Santiago de Compostela)
J.J. Gómez-Cadenas
(Donostia International Physics Center (DIPC); Instituto de Física Corpuscular (IFIC), CSIC & Universitat de València)
M. Kekic
(Instituto de Física Corpuscular (IFIC), CSIC & Universitat de València)
P. Ferrario
(Donostia International Physics Center (DIPC); Instituto de Física Corpuscular (IFIC), CSIC & Universitat de València)
