Published July 30, 2010 | Version v1
Journal article Metadata-only

Search for Chameleon Scalar Fields with the Axion Dark Matter Experiment

Creators

  • 1. University of California and Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
  • 2. National Radio Astronomy Observatory, Charlottesville, Virginia 22903 (United States)
  • 3. University of Florida, Gainesville, Florida 32611 (United States)
  • 4. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
  • 5. University of Washington, Seattle, Washington 98195 (United States)

Description

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 βγ excluding values between 2x109 and 5x1014 for effective chameleon masses between 1.9510 and 1.9525 μeV.

Additional details

Identifiers

DOI
10.1103/PhysRevLett.105.051801;
arXiv
arXiv:1004.5160v1;

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
105
Journal Issue
5
Journal Page Range
p. 051801-051801.4
ISSN
0031-9007
CODEN
PRLTAO

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
42004107
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
AFTERGLOW; COUPLING; MASS; MICROWAVE RADIATION; NONLUMINOUS MATTER; PHOTONS; SCALAR FIELDS; STANDARD MODEL
Descriptors DEC
BOSONS; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; FIELD THEORIES; GRAND UNIFIED THEORY; MASSLESS PARTICLES; MATHEMATICAL MODELS; MATTER; PARTICLE MODELS; QUANTUM FIELD THEORY; RADIATIONS; UNIFIED GAUGE MODELS

Optional Information

Notes
(c) 2010 The American Physical Society