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Low-Energy Backgrounds in Solid-State Phonon and Charge Detectors

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arxiv 2503.08859 v1 pith:C6JEDMRS submitted 2025-03-11 physics.ins-det astro-ph.IMhep-exhep-phquant-ph

Low-Energy Backgrounds in Solid-State Phonon and Charge Detectors

classification physics.ins-det astro-ph.IMhep-exhep-phquant-ph
keywords backgroundslow-energychargedetectorsev-scalephononsolid-stateadvancements
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Solid-state phonon and charge detectors probe the scattering of weakly interacting particles, such as dark matter and neutrinos, through their low recoil thresholds. Recent advancements have pushed sensitivity to eV-scale energy depositions, uncovering previously-unseen low-energy excess backgrounds. While some arise from known processes such as thermal radiation, luminescence, and stress, others remain unexplained. This review examines these backgrounds, their possible origins, and parallels to low-energy effects in solids. Their understanding is essential for interpreting particle interactions at and below the eV-scale.

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Cited by 6 Pith papers

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