First results from the NEWS-G direct dark matter search experiment at the LSM

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A90072%2F18%3A00344187" target="_blank" >RIV/68407700:90072/18:00344187 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.astropartphys.2017.10.009" target="_blank" >https://doi.org/10.1016/j.astropartphys.2017.10.009</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.astropartphys.2017.10.009" target="_blank" >10.1016/j.astropartphys.2017.10.009</a>

Result language
angličtina
Original language name
First results from the NEWS-G direct dark matter search experiment at the LSM
Original language description
New Experiments With Spheres-Gas (NEWS-G) is a direct dark matter detection experiment using Spherical Proportional Counters (SPCs) with light noble gases to search for low-mass Weakly Interacting Massive Particles (WIMPS). We report the results from the first physics run taken at the Laboratoire Souterrain de Modane (LSM) with SEDINE, a 60 cm diameter prototype SPC operated with a mixture of Ne + CH4 (0.7%) at 3.1 bars for a total exposure of 9.6 kg. days. New constraints are set on the spin-independent WIMP-nucleon scattering cross-section in the sub-GeV/c(2) mass region. We exclude cross-sections above 4.4 x 10(-37) cm(2) at 90% confidence level (C.L.) for a 0.5 GeV/c(2) WIMP. The competitive results obtained with SEDINE are promising for the next phase of the NEWS-G experiment: a 140 cm diameter SPC to be installed at SNOLAB by summer 2018. (C) 2017 Elsevier B.V. All rights reserved.
Czech name
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Czech description
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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

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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