Mapping the neutrino floor for direct detection experiments based on dark matter-electron scattering

Wyenberg, Jason; Shoemaker, Ian M.

doi:10.1103/physrevd.97.115026

Cited by 26 publications

(25 citation statements)

References 51 publications

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“…On the other hand, the case a e = ±a m is excluded for masses in the GeV range. We also note that the recoil cross sections are above the neutrino floor [65] and may be detectable with longer exposures or larger detectors.…”

Section: Electron Recoil Cross Sectionmentioning

confidence: 84%

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The shadow of dark matter as a shadow of string theory

Dashko

Dick

2019

Eur. Phys. J. C

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We point out that string theory can solve the conundrum to explain the emergence of an electroweak dipole moment from electroweak singlets through induction of those dipole moments through a Kalb-Ramond dipole coupling. This can generate a UY (1) portal to dark matter and entails the possibility that the UY (1) gauge field is related to a fundamental vector field for open string interactions. The requirement to explain the observed dark matter abundance relates the coupling scale M in the corresponding low-energy effective UY (1) portal to the dark matter mass mχ. The corresponding electron recoil cross sections for a single dipole coupled dark matter species are generically below the current limits from XENON, SuperCDMS and SENSEI, except in the GeV mass range if the electric dipole coupling becomes stronger than the magnetic coupling, a 2 e ≥ a 2 m . Furthermore, the recoil cross sections are above the neutrino floor and the UY (1) portal can be tested with longer exposure or larger detectors. Discovery of electroweak dipole dark matter would therefore open an interesting window into string phenomenology.

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Section: Electron Recoil Cross Sectionmentioning

confidence: 84%

“…The lower curve is for ae = 0 and the upper curve is for a 2 e = a 2 m . The neutrino floors with and without full separation of electron-neutrino and nucleon-neutrino scattering are taken from Ref [65]…”

mentioning

confidence: 99%

The shadow of dark matter as a shadow of string theory

Dashko

Dick

2019

Eur. Phys. J. C

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“…Neutrino scattering at dark matter direct detection experiments has been widely studied [16,[24][25][26][27][28][29][30][31][32][33] and depending on the range of energies may include contributions from solar, atmospheric and the diffuse supernova background. In fact, the original DM direct detection proposal from Goodman and Witten [34] was an extension of the detection method for solar and reactor neutrinos via neutral currents by Drukier and Stodolsky [35].…”

Section: B Event Rates In Xenon1t Detectormentioning

confidence: 99%

Direct detection experiments at the neutrino dipole portal frontier

Shoemaker

Wyenberg

2019

Phys. Rev. D

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Heavy sterile neutrinos are typically invoked to accommodate the observed neutrino masses, by positing a new Yukawa term connecting these new states to the neutrinos in the electroweak doublet. However, given our ignorance of the neutrino sector, we should explore additional interactions such sterile neutrinos may have with the SM. In this paper, we study the dimension-5 operator which couples the heavy state to a light neutrino and the photon. We find that the recent XENON1T direct detection data can improve the limits on this "Neutrino Dipole Portal" by up to an order of magnitude over previous bounds. Future direct detection experiments may be able to extend these bounds down to the level probed by SN1987A.

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“…New classes of experiments are now under development that search for dark mater-electron interactions, which are able to detect sub-keV electron recoils that may be induced by dark matter GeV (56). In experiments which do not discriminate between nuclear and electron recoils, nuclear recoils from 8 B will be the dominant background for these experiments (57,58). In addition to 8 B, Si-based experimental proposals will be sensitive to the 7 Be component, providing the intriguing possibility of directly measuring the survival probability in the vacuum-dominated regime (59).…”

Section: Nuclear Recoil Energy (Kev)mentioning

confidence: 99%

Neutrino Physics with Dark Matter Detectors

Dutta

Strigari

2019

Annu. Rev. Nucl. Part. Sci.

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Direct dark matter detection experiments will soon be sensitive to neutrinos from astrophysical sources, including the Sun, the atmosphere, and supernova. This sets an important benchmark for these experiments, and opens up a new window in neutrino physics and astrophysics. The detection of these neutrinos will be complementary to accelerator and reactor-based experiments which study neutrinos over the same energy range. Here we review the physics and astrophysics that can be extracted from the detection of these neutrinos, highlighting the potential for identifying new physics in the form of light mediators that arise from kinetic mixing and hidden sectors, and ∼ eV-scale sterile neutrinos. We discuss how the physics reach of these experiments will complement searches for new physics at the LHC and dedicated neutrino experiments.

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Mapping the neutrino floor for direct detection experiments based on dark matter-electron scattering

Cited by 26 publications

References 51 publications

The shadow of dark matter as a shadow of string theory

The shadow of dark matter as a shadow of string theory

Direct detection experiments at the neutrino dipole portal frontier

Neutrino Physics with Dark Matter Detectors

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