First Limits on Light Dark Matter Interactions in a Low Threshold Two-Channel Athermal Phonon Detector from the TESSERACT Collaboration
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A90263%2F25%3A00390818" target="_blank" >RIV/68407700:90263/25:00390818 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/hsrl-crvf" target="_blank" >https://doi.org/10.1103/hsrl-crvf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/hsrl-crvf" target="_blank" >10.1103/hsrl-crvf</a>
Alternative languages
Result language
angličtina
Original language name
First Limits on Light Dark Matter Interactions in a Low Threshold Two-Channel Athermal Phonon Detector from the TESSERACT Collaboration
Original language description
We present results of a search for spin-independent dark matter-nucleus interactions in a 1 cm2 by 1 mm thick (0.233 g) high-resolution silicon athermal phonon detector operated above ground. For interactions in the substrate, this detector achieves an rms baseline energy resolution of 361.5(4) meV (statistical error), the best for any athermal phonon detector to date. With an exposure of 0.233 gx12 hours, we place the most stringent constraints on dark matter masses between 44 and 87 MeV/c2, with the lowest unexplored cross section of 4x10-32 cm2 at 87 MeV/c2. We employ a conservative salting technique to reach the lowest dark matter mass ever probed via direct detection experiment. This constraint is enabled by two-channel rejection of low energy backgrounds that are coupled to individual sensors.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10304 - Nuclear physics
Result continuities
Project
—
Continuities
—
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review Letters
ISSN
0031-9007
e-ISSN
1079-7114
Volume of the periodical
135
Issue of the periodical within the volume
16
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
"161002-1"-"161002-8"
UT code for WoS article
001603878300001
EID of the result in the Scopus database
2-s2.0-105020651975