Light WIMP search with the NEWS-G experiment
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A90263%2F25%3A00390822" target="_blank" >RIV/68407700:90263/25:00390822 - isvavai.cz</a>
Výsledek na webu
<a href="https://doi.org/10.22323/1.501.0477" target="_blank" >https://doi.org/10.22323/1.501.0477</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.22323/1.501.0477" target="_blank" >10.22323/1.501.0477</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Light WIMP search with the NEWS-G experiment
Popis výsledku v původním jazyce
The NEWS-G experiment uses spherical proportional counters (SPC) to probe for low-mass dark matter. An SPC is a metallic sphere filled with gas, featuring a high-voltage anode at its centre, which produces a radial electric field. The interaction between a dark matter particle and a nucleus can cause ionization of the gas, resulting in an electron avalanche near the anode and a detectable signal. The latest NEWS-G detector, S-140, is a copper sphere with a diameter of 140 cm, which took 10 days of data with methane at the LSM, producing world-leading WIMP-proton spin-dependent limits. The detector is now taking data at SNOLAB with various gases, including neon and helium. The LSM and SNOLAB campaigns have also highlighted new challenges to overcome to maximize the detector’s capabilities. This, in turn, led to the development of interesting new techniques in terms of characterization, discrimination, and reduction of backgrounds. This paper describes the NEWS-G experiment, presents the latest results from the LSM data and discusses the progress on data taking and analysis at SNOLAB.
Název v anglickém jazyce
Light WIMP search with the NEWS-G experiment
Popis výsledku anglicky
The NEWS-G experiment uses spherical proportional counters (SPC) to probe for low-mass dark matter. An SPC is a metallic sphere filled with gas, featuring a high-voltage anode at its centre, which produces a radial electric field. The interaction between a dark matter particle and a nucleus can cause ionization of the gas, resulting in an electron avalanche near the anode and a detectable signal. The latest NEWS-G detector, S-140, is a copper sphere with a diameter of 140 cm, which took 10 days of data with methane at the LSM, producing world-leading WIMP-proton spin-dependent limits. The detector is now taking data at SNOLAB with various gases, including neon and helium. The LSM and SNOLAB campaigns have also highlighted new challenges to overcome to maximize the detector’s capabilities. This, in turn, led to the development of interesting new techniques in terms of characterization, discrimination, and reduction of backgrounds. This paper describes the NEWS-G experiment, presents the latest results from the LSM data and discusses the progress on data taking and analysis at SNOLAB.
Klasifikace
Druh
D - Stať ve sborníku
CEP obor
—
OECD FORD obor
10304 - Nuclear physics
Návaznosti výsledku
Projekt
—
Návaznosti
—
Ostatní
Rok uplatnění
2025
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název statě ve sborníku
39th International Cosmic Ray Conference (ICRC2025)
ISBN
—
ISSN
1824-8039
e-ISSN
—
Počet stran výsledku
9
Strana od-do
1-9
Název nakladatele
PoS - Proceedings of Science, Sissa Medialab srl
Místo vydání
Trieste
Místo konání akce
Geneva
Datum konání akce
14. 7. 2025
Typ akce podle státní příslušnosti
WRD - Celosvětová akce
Kód UT WoS článku
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