[Photon]-[axion-like particle] regeneration experiment using a "light shining through a wall" technique
[Photon]-[dilaton-like chameleon particle] regeneration using a "particle trapped in a jar" technique
- Physics motivation for a milli-eV particle (links)
- Energy frontier (Electroweak-Planck see-saw and string theory)
- Neutrinos (Mass differences)
- Astroparticle mysteries (Dark Matter and Dark Energy)
- Current experimental results (links)
- Previous experiment BFRT (null result, but milli-eV not excluded)
- PVLAS (anomalous result using polarization rotations and ellipticities, now maybe not?)
- CAST (null result looking at the shining sun), BMV (null pseudoscalar result)
- Theories exist that are consistent with PVLAS's anomalous and CAST's null results
- The GammeV Experiment (links)
- Tevatron dipole magnet at 5T
- Nd:YAG laser at 532nm, 5ns wide pulses, power 160mJ, rep rate 20Hz
- PMT with single photon sensitivity, 40% QE, 5mm photocathode
- Data acquisition system uses QuarkNet PMT timing boards
- An analysis based upon time correlated single photon counting
- The "wall" is a concave mirror mounted on a movable plunger
- The "jar" is between our optical windows from which a chameleon afterglow can shine
- Axion-like particle results PRL, preliminary results arXiv, see also our results page.
- Chameleon results, PRL, preliminary results arXiv, see our chameleon page.
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