Phys. Rev. Lett. 103, 080402 (2009) [4 pages]Probing Minicharged Particles with Tests of Coulomb’s LawReceived 26 May 2009; published 19 August 2009 Minicharged particles arise in many extensions of the standard model. Their contribution to the vacuum polarization modifies Coulomb’s law via the Uehling potential. In this Letter, we argue that tests for electromagnetic fifth forces can therefore be a sensitive probe of minicharged particles. In the low mass range ≲μeV existing constraints from Cavendish type experiments provide the best model-independent bounds on minicharged particles. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.103.080402
DOI:
10.1103/PhysRevLett.103.080402
PACS:
12.20.Fv, 12.60.−i
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