Search for invisible dark photon in $γe$ scattering at future lepton colliders

İnan, S. C.; Kisselev, A. V.

doi:10.48550/arxiv.2112.13070

Cited by 1 publication

(1 citation statement)

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“…In this subsection, we discuss the various existing constraints on the overall coupling between the DM and SM fermions for different values of the mass of the corresponding mediators. Depending on the masses of the new U(1) ′ gauge boson and the dark fermions, mainly two kinds of exclusion limits exist in the present literature [86][87][88][89].…”

Section: Existing Constraints On the Model Parametersmentioning

confidence: 99%

Constraints on cosmic-ray boosted dark matter with realistic cross section

Guha,

Park

2024

J. Cosmol. Astropart. Phys.

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Sub-MeV cold dark-matter particles are unable to produce electronic recoil in conventional dark-matter direct detection experiments such as XENONnT and LUX-ZEPLIN above the detector threshold. The mechanism of boosted dark matter comes into picture to constrain the parameter space of such low mass dark matter from direct detection experiments. We consider the effect of the leading components of cosmic rays to boost the cold dark matter, which results in significant improvements on the exclusion limits compared to the existing ones. To present concrete study results, we choose to work on models consisting of a dark-matter particle χ with an additional U(1)' gauge symmetry including the secluded dark photon, U(1)B-L, and U(1)L e-L μ . We find that the energy dependence of the scattering cross section plays a crucial role in improving the constraints. In addition, we systematically estimate the Earth shielding effect on boosted dark matter in losing energy while traveling to the underground detector through the Earth.

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Section: Existing Constraints On the Model Parametersmentioning

confidence: 99%