Direct detection of strongly interacting sub-GeV dark matter via electron recoils

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A90072%2F19%3A00344161" target="_blank" >RIV/68407700:90072/19:00344161 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1088/1475-7516/2019/09/070" target="_blank" >https://doi.org/10.1088/1475-7516/2019/09/070</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1475-7516/2019/09/070" target="_blank" >10.1088/1475-7516/2019/09/070</a>

Result language

angličtina

Original language name

Direct detection of strongly interacting sub-GeV dark matter via electron recoils

Original language description

We consider direct-detection searches for sub-GeV dark matter via electron scatterings in the presence of large interactions between dark and ordinary matter. Scatterings both on electrons and nuclei in the Earth's crust, atmosphere, and shielding material attenuate the expected local dark matter flux at a terrestrial detector, so that such experiments lose sensitivity to dark matter above some critical cross section. We study various models, including dark matter interacting with a heavy and ultralight dark photon, through an electric dipole moment, and exclusively with electrons. For a dark-photon mediator and an electric dipole interaction, the dark matter-electron scattering cross-section is directly linked to the dark matter-nucleus cross section, and nuclear interactions typically dominate the attenuation process. We determine the exclusion bands for the different dark-matter models from several experiments - SENSEI, CDMS-HVeV, XENON10, XENON100, and DarkSide-50 - using a combination of Monte Carlo simulations and analytic estimates. We also derive projected sensitivities for a detector located at different depths and for a range of exposures, and calculate the projected sensitivity for SENSEI at SNOLAB and DAMIC-M at Modane. Finally, we discuss the reach to high cross sections and the modulation signature of a small balloon- and satellite-borne detector sensitive to electron recoils, such as a Skipper-CCD. Such a detector could potentially probe unconstrained parameter space at high cross sections for a sub-dominant component of dark matter interacting with a massive, but ultralight, dark photon.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10303 - Particles and field physics

Project

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Continuities

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Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS

ISSN

1475-7516

e-ISSN

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Volume of the periodical

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Issue of the periodical within the volume

9

Country of publishing house

GB - UNITED KINGDOM

Number of pages

43

Pages from-to

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UT code for WoS article

000516537200005

EID of the result in the Scopus database

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