Open AccessSkipper CCDs for the search of a daily modulation of Dark Matter signal in the DMSQUARE experiment
Author(s) -
N. Ávalos,
H. Arnaldi,
I Artola,
X. Bertou,
E. Estrada,
M. Gómez Berisso,
Maria Belen Lovino,
M Mantiñan,
Miguel Sofo Haro,
J. Tiffenberg,
J. Estrada,
Tao Yu,
Rouven Essig,
Timon Emken
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2156/1/012074
Subject(s) - dark matter , recoil , modulation (music) , physics , signal (programming language) , noise (video) , astrophysics , computer science , nuclear physics , acoustics , artificial intelligence , image (mathematics) , programming language
The Dark Matter Daily Modulation experiment (DMSQUARE) seeks for dark matter interactions with a Skipper CCD. It is currently running at surface level in Bariloche, Argentina, and will be moved to a shallow underground site at Sierra Grande, Argentina in November 2021. The low threshold achieved by Skipper CCDs allows to search for electron recoil events with an ionization energy down to 1.2 eV. In order to extract a potential dark matter signal from noise at the single electron level, we propose to search for a diurnal modulation of events, resulting from the potential interaction of the dark matter wind with the particles in the Earth. Depending on the model, mass and cross-section, this modulation can be maximum at 40deg of latitude in the Southern Hemisphere, where DMSQUARE is operated. In this article we present the experiment, report preliminary results with a prototype Skipper CCD taking data at surface level and comment on future prospects.