Absolute measurement of the Fano factor using a Skipper-CCD

Rodrígues, D.; Andersson, Kevin; Cababie, Mariano; Donadon, Andre; Botti, Ana Martina; Cancelo, Gustavo; Estrada, J.; Fernandez-Moroni, Guillermo; Piegaia, R.; Senger, M.; Haro, Miguel Sofo; Stefanazzi, Leandro; Tiffenberg, J.; Uemura, Sho

doi:10.1016/j.nima.2021.165511

Cited by 47 publications

(40 citation statements)

References 27 publications

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“…Refs. [32,33] and references therein). The relevant energies are summarized for the three semiconductors of interest in Table 2.…”

Section: Semiconductorsmentioning

confidence: 99%

Detecting Beyond the Standard Model Interactions of Solar Neutrinos in Low-Threshold Dark Matter Detectors

Schwemberger,

2022

Preprint

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As low-threshold dark matter detectors advance in development, they will become sensitive to recoils from solar neutrinos which opens up the possibility to explore neutrino properties. We predict the enhancement of the event rate of solar neutrino scattering from Beyond the Standard Model interactions in low-threshold DM detectors, with a focus on silicon, germanium, gallium arsenide, xenon, and argon-based detectors. We consider a set of general neutrino interactions, which fall into five categories: the neutrino magnetic moment as well as interactions mediated by four types of mediators (scalar, pseudoscalar, vector, and axial vector), and consider coupling these mediators to either quarks or electrons. Using these predictions, we place constraints on the mass and couplings of each mediator and the neutrino magnetic moment from current lowthreshold detectors like SENSEI, Edelweiss, and SuperCDMS, as well as projections relevant for future experiments such as DAMIC-M, Oscura, Darwin, and ARGO. We find that such low-threshold detectors can improve current constraints by up to two orders of magnitude for vector mediators and one order of magnitude for scalar mediators.

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“…Refs. [32,33] and references therein). The relevant energies are summarized for the three semiconductors of interest in Table 2.…”

Section: Semiconductorsmentioning

confidence: 99%

Detecting Beyond the Standard Model Interactions of Solar Neutrinos in Low-Threshold Dark Matter Detectors

Schwemberger,

2022

Preprint

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“…For bubble chambers, yield measurements are still important, but also required is a detailed understanding of bubble nucleation threshold [66,67]. For semiconductors, major targets of understanding are the band-gap g , electron-hole pair-creation energy eh , and Fano-factor (quantifies the variation in produced ionization as a function of energy) of materials [68]. The pair-creation energy and Fano factor are statistical quantities, valid by the grace of the central limit theorem and only useful for high energy (E r g ).…”

Section: Ex-situ Model Calibrationmentioning

confidence: 99%

Snowmass2021 Cosmic Frontier White Paper: Calibrations and backgrounds for dark matter direct detection

Baxter¹,

Bunker²,

Shaw³

et al. 2022

Preprint

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Future dark matter direct detection experiments will reach unprecedented levels of sensitivity. Achieving this sensitivity will require more precise models of signal and background rates in future detectors. Improving the precision of signal and background modeling goes hand-in-hand with novel calibration techniques that can probe rare processes and lower threshold detector response. The goal of this white paper is to outline community needs to meet the background and calibration requirements of nextgeneration dark matter direct detection experiments.

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“…The floor operator x rounds x down to the nearest integer. The corresponding values for silicon are measured at E g 1.2 eV and ε 3.8 eV [32,33].…”

Section: Dark Matter -Electron Scattering Formalismmentioning

confidence: 99%

Dependence of Dark Matter - Electron Scattering on the Galactic Dark Matter Velocity Distribution

Radick,

Taki,

2020

Preprint

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The rate of dark matter-electron scattering depends on the underlying velocity distribution of the dark matter halo. Importantly, dark matter-electron scattering is particularly sensitive to the high-velocity tail, which differs significantly amongst the various dark matter halo models. In this work, we summarize the leading halo models and discuss the various parameters which enter them. We recommend updated values for these parameters based on recent studies and measurements. Furthermore, we quantify the dependence of the dark matter-electron scattering rate on the choice of halo model and parameters, and demonstrate how these choices propagate to the predicted cross-section limits. The rate is most sensitive to changes in the circular velocity v 0 ; in silicon targets, we find that the changes in the rate predictions can range from O(0.01%) to O(100%) for contact interactions and O(10%) to O(100%) for long-range interactions.

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Absolute measurement of the Fano factor using a Skipper-CCD

Cited by 47 publications

References 27 publications

Detecting Beyond the Standard Model Interactions of Solar Neutrinos in Low-Threshold Dark Matter Detectors

Detecting Beyond the Standard Model Interactions of Solar Neutrinos in Low-Threshold Dark Matter Detectors

Snowmass2021 Cosmic Frontier White Paper: Calibrations and backgrounds for dark matter direct detection

Dependence of Dark Matter - Electron Scattering on the Galactic Dark Matter Velocity Distribution

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