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Contribution Poster 0vbb

Poster (participating in poster prize competition)

Characterization of the NEXT-White Detector with Calibration Data

Speakers

  • J. RENNER

Primary authors

  • J. RENNER (Instituto de Física Corpuscular (IFIC), CSIC & Universitat de València)

Co-authors

  • P. FERRARIO (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)
  • G. MARTÍNEZ-LEMA (Instituto Gallego de Física de Altas Energías, Univ. de Santiago de Compostela)
  • F. MONRABAL (Department of Physics, University of Texas at Arlington; Donostia International Physics Center (DIPC))
  • J.J. GÓMEZ-CADENAS (Donostia International Physics Center (DIPC); Instituto de Física Corpuscular (IFIC), CSIC & Universitat de València)

Authorship annotation

for the NEXT collaboration

Session and Location

Monday Session, Poster Wall #61 (Auditorium Gallery Right)

Abstract content

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).

Poster included in proceedings:

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