Searching for low-mass dark matter particles with a massive Ge bolometer operated above ground
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A90072%2F19%3A00344287" target="_blank" >RIV/68407700:90072/19:00344287 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/PhysRevD.99.082003" target="_blank" >https://doi.org/10.1103/PhysRevD.99.082003</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.99.082003" target="_blank" >10.1103/PhysRevD.99.082003</a>
Alternative languages
Result language
angličtina
Original language name
Searching for low-mass dark matter particles with a massive Ge bolometer operated above ground
Original language description
The EDELWEISS Collaboration has performed a search for dark matter particles with masses below the GeV scale with a 33.4-g germanium cryogenic detector operated in a surface lab. The energy deposits were measured using a neutron-transmutation-doped Ge thermal sensor with a 17.7 eV (rms) baseline heat energy resolution leading to a 60 eV analysis energy threshold. Despite a moderate lead shielding and the high-background environment, the first sub-GeV spin-independent dark matter limit based on a germanium target has been achieved. The experiment provides the most stringent, nuclear-recoil-based, above-ground limit on spin-independent interactions above 600 MeV/c(2). The experiment also provides the most stringent limits on spin-dependent interactions with protons and neutrons below 1.3 GeV/c(2). Furthermore, the dark matter search results were studied in the context of strongly interacting massive particles, taking into account Earth-shielding effects, for which new regions of the available parameter space have been excluded. Finally, the dark matter search has also been extended to interactions via the Migdal effect, resulting for the first time in the exclusion of particles with masses between 45 and 150 MeV/c(2) with spin-independent cross sections ranging from 10(-29) to 10(-26)cm(2).
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
10303 - Particles and field physics
Result continuities
Project
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Continuities
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Others
Publication year
2019
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 D
ISSN
2470-0010
e-ISSN
2470-0029
Volume of the periodical
99
Issue of the periodical within the volume
8
Country of publishing house
US - UNITED STATES
Number of pages
15
Pages from-to
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UT code for WoS article
000465175200001
EID of the result in the Scopus database
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