SENSEI: Direct-Detection Constraints on Sub-GeV Dark Matter from a Shallow Underground Run Using a Prototype Skipper CCD

Abramoff, Orr; Barak, L.; Bloch, Itay M.; Chaplinsky, Luke; Crisler, M. B.; Dawa,; Drlica-Wagner, A.; Essig, Rouven; Estrada, J.; Etzion, E.; Fernández, Guillermo García; Gift, Daniel; Sofo-Haro, Miguel; Taenzer, J.; Tiffenberg, J.; Volansky, Tomer; Yu, Tien-Tien

doi:10.1103/physrevlett.122.161801

Cited by 243 publications

(256 citation statements)

References 21 publications

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“…High resistivity, ≈mm-thick silicon Charge Coupled Devices (CCDs) have been recently demonstrated as an effective detector technology for the search of rare events from dark matter [89][90][91] and neutrino [92] interactions. Efforts are ongoing for the construction of DAMIC-M [93], a kg-size detector to be installed at the Laboratoire Souterrain de Modane (LSM) in France.…”

Section: B Low-background Ccd Arrays With Single-electron Thresholdmentioning

confidence: 99%

Coherent elastic neutrino-nucleus scattering at the European Spallation Source

Baxter

Collar

Coloma

et al. 2020

J. High Energ. Phys.

125

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The European Spallation Source (ESS), presently well on its way to completion, will soon provide the most intense neutron beams for multi-disciplinary science. Fortuitously, it will also generate the largest pulsed neutrino flux suitable for the detection of Coherent Elastic Neutrino-Nucleus Scattering (CEνNS), a process recently measured for the first time at ORNL's Spallation Neutron Source. We describe innovative detector technologies maximally able to profit from the order-ofmagnitude increase in neutrino flux provided by the ESS, along with their sensitivity to a rich particle physics phenomenology accessible through high-statistics, precision CEνNS measurements.

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Section: B Low-background Ccd Arrays With Single-electron Thresholdmentioning

confidence: 99%

Coherent elastic neutrino-nucleus scattering at the European Spallation Source

Baxter

Collar

Coloma

et al. 2020

J. High Energ. Phys.

125

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“…This is because the dark matter flux drops as 1/m χ , while σ 0 χn ∝ α D , which for reannihilation also scales roughly as m χ . Several recent experiments, notably SENSEI [80], DAMIC [81], XENON10 [82], SuperCDMS [83], and DarkSide-50 [84], have constrained very light dark matter scattering off of electrons. The relevant cross-section for this is simply [85] As we will uncover in the next two sections, ∼ 10 −10 is the largest value possible and ∼100 keV is lightest that a B − L vector can be for dark matter in this mass range.…”

Section: Direct Detectionmentioning

confidence: 99%

Leak-in dark matter

Evans

Gaidau

Shelton

2020

J. High Energ. Phys.

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We introduce leak-in dark matter, a novel out-of-equilibrium origin for the dark matter (DM) in the universe. We provide a comprehensive and unified discussion of a minimal, internallythermalized, hidden sector populated from an out-of-equilibrium, feeble connection to the hotter standard model (SM) sector. We emphasize that when this out-of-equilibrium interaction is renormalizable, the colder sector undergoes an extended phase of non-adiabatic evolution largely independent of initial conditions, which we dub "leak-in." We discuss the leak-in phase in generality, and establish the general properties of dark matter that freezes out from a radiation bath undergoing such a leak-in phase. As a concrete example, we consider a model where the SM has an out-of-equilibrium B − L vector portal interaction with a minimal hidden sector. We discuss the interplay between leak-in and freezein processes in this theory in detail and demonstrate regions where leak-in yields the full relic abundance. We study observational prospects for B −L vector portal leak-in DM, and find that despite the requisite small coupling to the SM, a variety of experiments can serve as sensitive probes of leak-in dark matter. Additionally, regions allowed by all current constraints yield DM with self-interactions large enough to address small-scale structure anomalies. ARXIV EPRINT: nnnn.nnnnn arXiv:1909.04671v1 [hep-ph]

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“…A heavy dark matter can still softly scatter off of the He-4 detector so to excite a phonon degree of freedom. [64], XENON10, XENON100 [32] and DarkSide-50 [65]. We consider a 95% C.L.…”

Section: Phonon Emissionmentioning

confidence: 99%

Dark matter, dark photon and superfluid He-4 from effective field theory

et al. 2020

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We consider a model of sub-GeV dark matter whose interaction with the Standard Model is mediated by a new vector boson (the dark photon) which couples kinetically to the photon. We describe the possibility of constraining such a model using a superfluid He-4 detector, by means of an effective theory for the description of the superfluid phonon. We find that such a detector could provide bounds that are competitive with other direct detection experiments only for ultralight vector mediator, in agreement with previous studies. As a byproduct we also present, for the first time, the low-energy effective field theory for the interaction between photons and phonons.

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SENSEI: Direct-Detection Constraints on Sub-GeV Dark Matter from a Shallow Underground Run Using a Prototype Skipper CCD

Cited by 243 publications

References 21 publications

Coherent elastic neutrino-nucleus scattering at the European Spallation Source

Coherent elastic neutrino-nucleus scattering at the European Spallation Source

Leak-in dark matter

Dark matter, dark photon and superfluid He-4 from effective field theory

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