New Fixed-Target Experiments to Search for Dark Gauge Forces

Details New Fixed-Target Experiments to Search for Dark Gauge Forces New Fixed-Target Experiments to Search for Dark Gauge Forces

2009-06-03

arxiv.org/abs/0906.0580v1

Phys.Rev.D80:075018,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages + 6 page appendix and refs, 11 figures

Scientific paper

10.1103/PhysRevD.80.075018

Fixed-target experiments are ideally suited for discovering new MeV-GeV mass U(1) gauge bosons through their kinetic mixing with the photon. In this paper, we identify the production and decay properties of new light gauge bosons that dictate fixed-target search strategies. We summarize existing limits and suggest five new experimental approaches that we anticipate can cover most of the natural parameter space, using currently operating GeV-energy beams and well-established detection methods. Such experiments are particularly timely in light of recent terrestrial and astrophysical anomalies (PAMELA, FERMI, DAMA/LIBRA, etc.) consistent with dark matter charged under a new gauge force.

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