Search for Chameleon Scalar Fields with the Axion Dark Matter Experiment

Journal Article · Fri Jul 30 00:00:00 EDT 2010 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.105.051801· OSTI ID:21410946

Rybka, G; Hotz, M; Rosenberg, L J; Asztalos, S J; Carosi, G; Hagmann, C; Kinion, D; van Bibber, K; Hoskins, J; Martin, C; Sikivie, P; Tanner, D B; Bradley, R; Clarke, J ^[1]

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1. University of Washington, Seattle, Washington 98195 (United States)

Scalar fields with a 'chameleon' property, in which the effective particle mass is a function of its local environment, are common to many theories beyond the standard model and could be responsible for dark energy. If these fields couple weakly to the photon, they could be detectable through the afterglow effect of photon-chameleon-photon transitions. The ADMX experiment was used in the first chameleon search with a microwave cavity to set a new limit on scalar chameleon-photon coupling {beta}{sub {gamma}}excluding values between 2x10{sup 9} and 5x10{sup 14} for effective chameleon masses between 1.9510 and 1.9525 {mu}eV.

• OSTI ID: 21410946
• Journal Information: Physical Review Letters, Vol. 105, Issue 5; Other Information: DOI: 10.1103/PhysRevLett.105.051801; (c) 2010 The American Physical Society; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

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MICROWAVE RADIATION
NONLUMINOUS MATTER
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STANDARD MODEL
BOSONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
FIELD THEORIES
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MATHEMATICAL MODELS
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QUANTUM FIELD THEORY
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