Constraints on the dark photon from deep inelastic scattering

We investigate constraints on the dark photon arising from an analysis of deep inelastic scattering data. We perform extractions of parton distribution functions with and without a dark photon being present and allow the dark photon mixing parameter and mass to vary. We also include the effects of vector-meson dominance to ensure the correct photoproduction limit. By considering the variation of the total chi(2) arising from such extractions, we infer exclusion limits on the kinetic mixing parameter of the dark photon for dark photon mass up to 80 GeV.

Automated summary

We investigate constraints on the dark photon arising from deep inelastic scattering data. By extracting parton distribution functions and considering the variations of the dark photon mixing parameter and mass, as well as the effects of vector-meson dominance, exclusion limits on the kinetic mixing parameter of the dark photon are inferred.