Testing Chameleon Theories with Light Propagating through a Magnetic Field

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dc.creatorBrax, P.
dc.creatorvan de Bruck, C.
dc.creatorDavis, A. C.
dc.creatorMota, D. F.
dc.creatorShaw, D. J.
dc.date2007-07-18
dc.date2007-08-16
dc.date.accessioned2026-07-07T10:56:48Z
dc.date.available2026-07-07T10:56:48Z
dc.descriptionIt was recently argued that the observed PVLAS anomaly can be explained by chameleon field theories in which large deviations from Newton's law can be avoided. Here we present the predictions for the dichroism and the birefringence induced in the vacuum by a magnetic field in these models. We show that chameleon particles behave very differently from standard axion-like particles (ALPs). We find that, unlike ALPs, the chameleon particles are confined within the experimental set-up. As a consequence, the birefringence is always bigger than the dichroism in PVLAS-type experiments.
dc.description24 pages, 6 figures. New paragraph and two extra plots with the predictions for Chameleon models within the BRFT experimental setup. Accepted for publication in Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/0707.2801
dc.identifierhttp://arxiv.org/abs/0707.2801
dc.identifierPhys.Rev.D76:085010,2007
dc.identifierdoi:10.1103/PhysRevD.76.085010
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/186539
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Theory
dc.titleTesting Chameleon Theories with Light Propagating through a Magnetic Field
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