QUEST-DMC superfluid He detector for sub-GeV dark matter
Oct 17, 202317 pages
Published in:
- Eur.Phys.J.C 84 (2024) 3, 248
- Published: Mar 8, 2024
e-Print:
- 2310.11304 [hep-ex]
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Abstract: (Springer)
The focus of dark matter searches to date has been on Weakly Interacting Massive Particles (WIMPs) in the GeV/-TeV/ mass range. The direct, indirect and collider searches in this mass range have been extensive but ultimately unsuccessful, providing a strong motivation for widening the search outside this range. Here we describe a new concept for a dark matter experiment, employing superfluid He as a detector for dark matter that is close to the mass of the proton, of order 1 GeV/. The QUEST-DMC detector concept is based on quasiparticle detection in a bolometer cell by a nanomechanical resonator. In this paper we develop the energy measurement methodology and detector response model, simulate candidate dark matter signals and expected background interactions, and calculate the sensitivity of such a detector. We project that such a detector can reach sub-eV nuclear recoil energy threshold, opening up new windows on the parameter space of both spin-dependent and spin-independent interactions of light dark matter candidates.Note:
- 17 pages, 8 figures, 2 tables. Published in EPJ-C
- dark matter: direct detection
- WIMP: mass
- dark matter: mass
- spin: dependence
- detector: design
- background: interaction
- energy: threshold
- recoil: energy
- nucleus: recoil
- p: mass
References(79)
Figures(11)
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