A Search for Scalar Chameleons with ADMX
Cosmology and Nongalactic Astrophysics
2014-11-20 v1
Abstract
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 excluding values between 2*10^9 and 5*10^14 for effective chameleon masses between 1.9510 and 1.9525 micro-eV.
Cite
@article{arxiv.1004.5160,
title = {A Search for Scalar Chameleons with ADMX},
author = {G. Rybka and M. Hotz and L. J Rosenberg and S. J. Asztalos and G. Carosi and C. Hagmann and D. Kinion and K. van Bibber and J. Hoskins and C. Martin and P. Sikivie and D. B. Tanner and R. Bradley and J. Clarke},
journal= {arXiv preprint arXiv:1004.5160},
year = {2014}
}
Comments
4 pages, 3 figures