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Dark Matter and Exotic Neutrino Interactions in Direct Detection Searches
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abstract
We investigate the effect of new physics interacting with both Dark Matter (DM) and neutrinos at DM direct detection experiments. Working within a simplified model formalism, we consider vector and scalar mediators to determine the scattering of DM as well as the modified scattering of solar neutrinos off nuclei. Using existing data from LUX as well as the expected sensitivity of LUX-ZEPLIN and DARWIN, we set limits on the couplings of the mediators to quarks, neutrinos and DM. Given the current limits, we also assess the true DM discovery potential of direct detection experiments under the presence of exotic neutrino interactions. In the case of a vector mediator, we show that the DM discovery reach of future experiments is affected for DM masses $m_\chi \lesssim 10$ GeV or DM scattering cross sections $\sigma_\chi \lesssim 10^{-47}$ cm$^2$. On the other hand, a scalar mediator will not affect the discovery reach appreciably.
Forward citations
Cited by 4 Pith papers
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$\texttt{SNuDD}$: Solar Neutrinos for Direct Detection
SNuDD computes solar-neutrino recoil spectra with non-standard interactions and derives NSI limits from xenon direct-detection data that are competitive with dedicated neutrino experiments.
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Combined solar CEνNS data from XENONnT, PandaX-4T, and LZ yield competitive constraints on vector NSI and light mediators and a weak mixing angle measurement at low momentum transfer.
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New light mediators and the neutrino fog: Implications from XENONnT nuclear recoil data
Light-mediator couplings are constrained more strongly when they attach to dark matter than to neutrinos, and the neutrinofog in xenon detectors is shifted and deformed under both scenarios.
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Neutrino fog in the light dark sector: the role of isospin violation
In a U(1)' dark sector model, isospin-violating couplings shift both the neutrino floor and the DM exclusion bound, changing the window for light dark matter discovery.
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