@article{10902/31512,
year = {2023},
url = {https://hdl.handle.net/10902/31512},
abstract = {In the context of direct searches of sub-GeV dark matter particles with germanium detectors, the
EDELWEISS collaboration has tested a new technique to tag ionizing events using NbSi transition edge
athermal phonon sensors. The emission of the athermal phonons generated by the Neganov-Trofimov-Luke
effect associated with the drift of electrons and holes through the detectors is used to tag ionization events
generated in specific parts of the detector localized in front of the NbSi sensor and to reject by more than
a factor 5 [at 90% confidence level (CL)] the background from heat-only events that dominates the
spectrum above 3 keV. This method is able to improve by a factor of 2.8 the previous limit on spinindependent interactions of 1 GeV=c2 weakly interacting massive particles obtained with the same detector
and dataset but without this tagging technique.},
organization = {The help of the technical staff of the Laboratoire Souterrain de Modane and the participant laboratories is gratefully acknowledged. The EDELWEISS project is supported in part by the French Agence Nationale pour la Recherche (ANR-21-CE31-0004), by the P2IO LabEx (ANR-10-LABX-0038) in the framework “Investissements d’Avenir” (ANR-11-IDEX-0003-01), and the LabEx Lyon Institute of Origins (ANR-10-LABX-0066) within the framework of the program France 2030, also operated by the National Research Agency of France. B. J. Kavanagh thanks the Spanish Agencia Estatal de Investigación (AEI, MICIU) for the support to the Unidad de Excelencia María de Maeztu Instituto de Física de Cantabria, Ref. MDM-2017-0765. B. J. K. also acknowledges funding from the Ramón y Cajal Grant RYC2021-034757-I, financed by MCIN/AEI/10.13039/ 501100011033 and by the European Union “NextGenerationEU”/PRTR.},
publisher = {American Physical Society},
publisher = {Physical Review D, 2023, 108(2), 022006},
title = {Tagging and localization of ionizing events using NbSi transition edge phonon sensors for dark matter searches},
author = {Augier, C. and Benoît, A. and Bergé, L. and Billard, J. and Broniatowski, A. and Camus, P. and Cazes, A. and Chapellier, M. and Charlieux, F. and Colas, J. and Jésus, M. De and Dumoulin, L. and Eitel, K. and Filippini, J.-B. and Filosofov, D. and Gascon, J. and Giuliani, A. and Gros, M. and Guy, E. and Kavanagh, Bradley James},
}