Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2008-10-24
Physics
High Energy Physics
High Energy Physics - Experiment
Parallel talk at ICHEP08, Philadelphia, USA, July 2008, 4 pages, LaTeX, 5 eps figures
Scientific paper
GammeV is an experiment conducted at Fermilab that employs the light shining through a wall technique to search for axion-like particles and employs a particle in a jar technique to search for dilaton-like chameleon particles. We obtain limits on the coupling of photons to an axion-like particle that extend previous limits for both scalars and pseudoscalars in the milli-eV mass range. We are able to exclude the axion-like particle interpretation of the anomalous PVLAS 2006 result by more than 5 standard deviations. We also present results on a search for chameleons and set limits on their possible coupling to photons.
for the GammeV Collaboration
Wester William
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