The Heavy Photon Search experiment at Jefferson Laboratory

Abstract

The Heavy Photon Search experiment (HPS) at Jefferson Laboratory will search for a new $U(1)$ massive gauge boson, or "heavy-photon," mediator of a new fundamental interaction, called "dark-force," that couples to ordinary photons trough kinetic mixing. HPS has sensitivity in the mass range 20 MeV - 1 GeV and coupling ${\epsilon }^2$ between 10${}^{-5}$ and 10${}^{-10}$. The HPS experiment will search for the $e^{+}{e}^{-}$ decay of the heavy photon, by resonance search and detached vertexing, in an electron beam fixed target experiment. HPS will use a compact forward spectrometer, which employs silicon microstrip detectors for vertexing and tracking, and a PbWO${}_4$ electromagnetic calorimeter for energy measurement and fast triggering.

References in corpus (8)

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• Secluded U(1) below the weak scale
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• A new measurement of the antiproton-to-proton flux ratio up to 100 GeV in the cosmic radiation
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• Extra-weakly Interacting Dark Matter
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