QUEST-DMC superfluid $^3$He detector for sub-GeV dark matter

Autor: Autti, S., Casey, A., Eng, N., Darvishi, N., Franchini, P., Haley, R. P., Heikkinen, P. J., Jennings, A., Kemp, A., Leason, E., Levitin, L. V., Monroe, J., March-Russel, J., Noble, M. T., Prance, J. R., Rojas, X., Salmon, T., Saunders, J., Smith, R., Thompson, M. D., Tsepelin, V., West, S. M., Whitehead, L., Zavjalov, V. V., Zmeev, D. E.
Rok vydání: 2023
Předmět:
Zdroj: Eur. Phys. J. C (2024) 84:248
Druh dokumentu: Working Paper
DOI: 10.1140/epjc/s10052-024-12410-8
Popis: The focus of dark matter searches to date has been on Weakly Interacting Massive Particles (WIMPs) in the GeV/$c^2$-TeV/$c^2$ 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 $^3$He as a detector for dark matter that is close to the mass of the proton, of order 1 GeV/$c^2$. 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.
Comment: 17 pages, 8 figures, 2 tables. Published in EPJ-C
Databáze: arXiv
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