Dark Vector Boson Bremsstrahlung: New Form Factors for a Broader Class of Models

2025/09/11 by Kling, Felix, Reimitz, Peter, Ritz, Adam · 2 citations
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.2509.09437

Abstract

We explore the sensitivity of collider experiments to a broad class of GeV-scale dark vector models of new physics via production in proton and neutron bremsstrahlung and initial state radiation. This is achieved using a new physically motivated model for timelike vector form factors with generic charges for both protons and neutrons, which is fit to a variety of timelike and spacelike data with quantified uncertainties. The production model for both proton and neutron bremsstrahlung is applied to re-cast and extend the reach of existing FASER data to GeV-mass dark photons, U(1)_B, U(1)_B-L, and photophobic vectors, as well as forecasts for millicharged particles at FORMOSA.

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Cited by

• Dedicated Searches for Millicharged Particles at Intensity-Frontier Facilities: SpinQuest and SHiP
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