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Direct detection of pseudo-Nambu-Goldstone dark matter with light mediator

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arxiv 2108.10647 v2 pith:QIMHHSQN submitted 2021-08-24 hep-ph

classification hep-ph
keywords darkmatterdetectiondirectelasticexperimentsmediatorpseudo-nambu-goldstone
verification ladder T0 review T1 audit T2 compute T3 formal
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It has been found that a pseudo-Nambu-Goldstone boson dark matter suppresses the amplitude for elastic scattering with nuclei in non-relativistic limit, and thus can naturally evade the strong constraint of dark matter direct detection experiments. In this paper, we show that non-zero elastic scattering cross section can be induced if the mediator mass is as small as momentum transfer. The predicted recoil energy spectrum can differ from that for usual thermal dark matter. Together with the relevant constraints such as thermal relic abundance, indirect detection and Higgs decays, we investigate the detectability through the current and future dark matter direct detection experiments.

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  1. Tiny yet detectable WIMP-nucleon scattering cross sections in a pseudo-Nambu-Goldstone dark matter model

    hep-ph 2024-11 conditional novelty 5.0 of 10

    The authors construct a pseudo-Nambu-Goldstone dark matter model whose subdominant vector or scalar partner produces effective WIMP-nucleon cross sections below today's bounds but above the neutrino fog.

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