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arxiv: 1010.0988 · v1 · pith:74W4DXVSnew · submitted 2010-10-05 · 🌌 astro-ph.CO · gr-qc· hep-ex· hep-ph

Laboratory constraints on chameleon dark energy and power-law fields

Jason H. Steffen (1) , Amol Upadhye (2) , Al Baumbaugh (1) , Aaron S. Chou (1) , Peter O. Mazur (1) , Ray Tomlin (1) , Amanda Weltman (3) , William Wester (1) ((1) Fermi National Accelerator Laboratory (2) Kavli Institute for Cosmological Physics
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University of Chicago (3) University of Cape Town)
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classification 🌌 astro-ph.CO gr-qchep-exhep-ph
keywords chameleonmagnitudemodelsordersdarkenergyexcludepower-law
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We report results from the GammeV Chameleon Afterglow Search---a search for chameleon particles created via photon/chameleon oscillations within a magnetic field. This experiment is sensitive to a wide class of chameleon power-law models and dark energy models not previously explored. These results exclude five orders of magnitude in the coupling of chameleons to photons covering a range of four orders of magnitude in chameleon effective mass and, for individual chameleon models, exclude between 4 and 12 orders of magnitude in chameleon couplings to matter.

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