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Resonant probing spin-0 and spin-2 dark matter mediators with fixed target experiments

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arxiv 2304.14052 v2 pith:MIDDW52Q submitted 2023-04-27 hep-ph

I.V.Voronchikhin , D.V.Kirpichnikov This is my paper · ORCID
classification hep-ph
keywords mediatorsdarkexperimentsfixedldmxmattermechanismna64
verification ladder T0 review T1 audit T2 compute T3 formal
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We discuss the mechanism to produce electron-specific dark matter mediators of spin-0 and spin-2 in the electron fixed target experiments such as NA64 and LDMX. The secondary positrons induced by the electromagnetic shower can produce the mediators via annihilation on atomic electrons. That mechanism, for some selected kinematics, results in the enhanced sensitivity with respect to the bounds derived by the bremsstrahlunglike emission of the mediator in the specific parameter space. We derive the corresponding experimental reach of the NA64 and LDMX.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. The bremsstrahlung-like production of the massive spin-2 dark matter mediator

    hep-ph 2024-12 conditional novelty 6.0 of 10

    E137 beam-dump data exclude spin-2 dark matter mediator couplings from about 8e-8 to 1e-5 per GeV for mediator masses 100 to 800 MeV, assuming equal electron and photon couplings.

  2. Probing Light Dark Particles in Neutrino Scattering Experiments

    hep-ph 2026-02 conditional novelty 5.0 of 10

    A dark fermion produced in neutrino scattering could be probed at DUNE's near detector up to cutoff scales near 1 TeV, beyond CHARM II and LEP, while current COHERENT/CONUS+ limits stay below LHC bounds.

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