No light shining through a wall : new results from a photoregeneration experiment

Recently, axion-like particle search has received renewed interest. In particular, several groups have started ''light shining through a wall'' experiments based on magnetic field and laser both continuous, which is very demanding in terms of detector background. We present here...

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Bibliographic Details
Published in:Physical review letters 2007, Vol.99 (18)
Main Authors: Robilliard, Cécile, Battesti, Rémy, Hugbart, Mathilde, Mauchain, Julien, Sautivet, Anne-Marie, Amiranoff, François, Rizzo, Carlo
Format: Article
Language:English
Subjects:
High Energy Physics - Experiment
Physics
Quantum Physics
Online Access:Get full text
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Summary:Recently, axion-like particle search has received renewed interest. In particular, several groups have started ''light shining through a wall'' experiments based on magnetic field and laser both continuous, which is very demanding in terms of detector background. We present here the 2$\sigma$ limits obtained so far with our novel set-up consisting of a pulsed magnetic field and a pulsed laser. In particular, we have found that the axion-like particle two photons inverse coupling constant $M$ is $> 8\times 10^5$ GeV provided that the particle mass $m_\mathrm{a} \sim$ 1 meV. Our results definitively invalidate the axion interpretation of the original PVLAS optical measurements with a confidence level greater than 99.9%.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.99.190403