Search for light massive gauge bosons as an explanation of the $(g-2{)}_{\mu }$ anomaly at MAMI

Abstract

A massive, but light abelian U(1) gauge boson is a well motivated possible signature of physics beyond the Standard Model of particle physics. In this paper, the search for the signal of such a U(1) gauge boson in electron-positron pair-production at the spectrometer setup of the A1 Collaboration at the Mainz Microtron (MAMI) is described. Exclusion limits in the mass range of 40 MeV up to 300 MeV with a sensitivity in the mixing parameter of down to ${\epsilon }^2=8\times 10^{-7}$ are presented. A large fraction of the parameter space has been excluded where the discrepancy of the measured anomalous magnetic moment of the muon with theory might be explained by an additional U(1) gauge boson.

4 pages, 3 figures

References in corpus (7)

• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Observation of an anomalous positron abundance in the cosmic radiation
• Secluded U(1) below the weak scale
• New Fixed-Target Experiments to Search for Dark Gauge Forces
• U-boson production in e+e- annihilations, psi and Upsilon decays, and Light Dark Matter
• New Limits on Hidden Photons from Past Electron Beam Dumps
• Probing Dark Forces and Light Hidden Sectors at Low-Energy e+e- Colliders

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