Proposal for an Experiment to Search for Light Dark Matter at the SPS
S. Andreas, S.V. Donskov, P. Crivelli, A. Gardikiotis, S.N. Gninenko,, N.A. Golubev, F.F. Guber, A.P. Ivashkin, M.M. Kirsanov, N.V. Krasnikov, V.A., Matveev, Yu.V. Mikhailov, Yu.V. Musienko, V.A. Polyakov, A. Ringwald, A., Rubbia, V.D. Samoylenko, Y.K. Semertzidis, K. Zioutas

TL;DR
This paper proposes an experiment at CERN SPS to search for light dark matter via dark photons, aiming to explore new parameter space and detect potential dark sector particles through electron beam interactions.
Contribution
It introduces a novel experimental setup using high-energy electron beams to search for dark photons in unexplored parameter regions, including invisible decay channels.
Findings
Potential to probe mixing strengths 10^-5 to 10^-3
Capability to detect dark photons with masses below 100 MeV
Sensitivity to dark matter particles decaying invisibly
Abstract
Several models of dark matter suggest the existence of dark sectors consisting of SU(3)_C x SU(2)_L x U(1)_Y singlet fields. These sectors of particles do not interact with the ordinary matter directly but could couple to it via gravity. In addition to gravity, there might be another very weak interaction between the ordinary and dark matter mediated by U'(1) gauge bosons A' (dark photons) mixing with our photons. In a class of models the corresponding dark gauge bosons could be light and have the -A' coupling strength laying in the experimentally accessible and theoretically interesting region. If such A' mediators exist, their di-electron decays A' -> e+e- could be searched for in a light-shining-through-a-wall experiment looking for an excess of events with the two-shower signature generated by a single high energy electron in the detector. A proposal to perform such an…
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Taxonomy
TopicsDark Matter and Cosmic Phenomena · Particle physics theoretical and experimental studies · Particle Detector Development and Performance
