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arXiv · hep-ph/0511103

Photon Regeneration from Pseudoscalars at X-ray Laser Facilities

Raul Rabadan·Andreas Ringwald·Kris Sigurdson
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Abstract

Recently, the PVLAS collaboration has reported an anomalously large rotation of the polarization of light in the presence of a magnetic field. As a possible explanation they consider the existence of a light pseudoscalar particle coupled to two photons. In this note, we propose a method of independently testing this result by using a high-energy photon regeneration experiment (the X-ray analogue of "invisible light shining through walls") using the synchrotron X-rays from a free-electron laser (FEL). With such an experiment the region of parameter space implied by PVLAS could be probed in a matter of minutes.

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Raul Rabadan, Andreas Ringwald, Kris Sigurdson. 2005-11-08. Photon Regeneration from Pseudoscalars at X-ray Laser Facilities. https://doi.org/10.1103/physrevlett.96.110407

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