Abstract
We study the prospects for detecting a light boson X with mass m X ≾ 100 MeV at a low energy electron-proton collider. We focus on the case where X dominantly decays to e + e − as motivated by recent “dark force” models. In order to evade direct and indirect constraints, X must have small couplings to the standard model (α X ≾ 10−8) and a sufficiently large mass (m X ≳ 10 MeV). By comparing the signal and background cross sections for the e − p e + e − final state, we conclude that dark force detection requires an integrated luminosity of around 1 ab−1, achievable with a forthcoming JLab proposal.
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Freytsis, M., Ovanesyan, G. & Thaler, J. Dark force detection in low energy e-p collisions. J. High Energ. Phys. 2010, 111 (2010). https://doi.org/10.1007/JHEP01(2010)111
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DOI: https://doi.org/10.1007/JHEP01(2010)111