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

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arxiv 1404.5502 v1 pith:GDJBTBM3 submitted 2014-04-22 hep-ex nucl-ex

classification hep-exnucl-ex
keywords gaugebosonlightmamimassiveparameterphysicssearch
verification ladder T0 review T1 audit T2 compute T3 formal
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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.

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Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

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  4. A congruous approach with realistic cross section towards limiting sub-GeV dark matter from LUX-ZEPLIN

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  6. The Dark Photon

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