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Experimental Limit on Optical-Photon Coupling to Light Neutral Scalar Bosons

Experimental Limit on Optical-Photon Coupling to Light Neutral Scalar Bosons

We report on the first results of a sensitive search for scalar coupling of photons to a light neutral boson in the mass range of approximately 1.0 meV (milli-electron volts) and coupling strength greater than ${10}^{\ensuremath{-}6}\text{ }\text{ }{\mathrm{GeV}}^{\ensuremath{-}1}$ using optical photons. This was a photon regeneration experiment using the ``light …