A search for chameleon particles using a photon regeneration technique
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We report the first results from the GammeV search for chameleon particles, which may be created via photon-photon interactions within a strong magnetic field. Chameleons are hypothesized scalar fields that could explain the dark energy problem. We implement a novel technique to create and trap the reflective particles within a jar and to detect them later via their afterglow as they slowly convert back into photons. These measurements provide the first experimental constraints on the couplings of chameleons to photons.
4 pages, 3 figures, accepted to PRL, minor revisions to introduction and a more quantitative estimate of reflection condition
4 pages, 3 figures, accepted to PRL, minor revisions to introduction and a more quantitative estimate of reflection condition