Tagging and localization of ionizing events using NbSi transition edge phonon sensors for dark matter searches

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A90263%2F23%3A00371316" target="_blank" >RIV/68407700:90263/23:00371316 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1103/PhysRevD.108.022006" target="_blank" >https://doi.org/10.1103/PhysRevD.108.022006</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevD.108.022006" target="_blank" >10.1103/PhysRevD.108.022006</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Tagging and localization of ionizing events using NbSi transition edge phonon sensors for dark matter searches

Popis výsledku v původním jazyce

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 spin independent interactions of 1 GeV/c2 weakly interacting massive particles obtained with the same detector and dataset but without this tagging technique.

Název v anglickém jazyce

Tagging and localization of ionizing events using NbSi transition edge phonon sensors for dark matter searches

Popis výsledku anglicky

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 spin independent interactions of 1 GeV/c2 weakly interacting massive particles obtained with the same detector and dataset but without this tagging technique.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

—

Návaznosti

—

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physical Review D

ISSN

2470-0010

e-ISSN

2470-0029

Svazek periodika

108

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

"022006-1"-"022006-13"

Kód UT WoS článku

001058378900006

EID výsledku v databázi Scopus

2-s2.0-85166782827