Laboratory Constraints on Chameleon Dark Energy and Power-Law Fields

Journal Article · Fri Dec 31 04:00:00 EST 2010 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.105.261803· OSTI ID:21554495

Steffen, J H; Baumbaugh, A; Chou, A S; Mazur, P O; Tomlin, R; Wester, W ^[1]; Upadhye, A ^[2]; Weltman, A ^[3]

---

1. Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois 60510 (United States)
2. Kavli Institute for Cosmological Physics, University of Chicago, Chicago, Illinois 60637 (United States)
3. Astrophysics, Cosmology and Gravity Centre, University of Cape Town, Rondebosch, Private Bag, 7700 (South Africa)

We report results from a search for chameleon particles created via photon-chameleon oscillations within a magnetic field. This experiment is sensitive to a wide class of unexplored chameleon power-law and dark energy models. These results exclude 5 orders of magnitude in the coupling of chameleons to photons covering a range of 4 orders of magnitude in chameleon effective mass and, for individual models, exclude between 4 and 12 orders of magnitude in chameleon couplings to matter.

• OSTI ID: 21554495
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 26 Vol. 105; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
COUPLING
EFFECTIVE MASS
ELEMENTARY PARTICLES
MAGNETIC FIELDS
MASS
MASSLESS PARTICLES
MATTER
NONLUMINOUS MATTER
OSCILLATIONS
PHOTONS