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arxiv: 1008.2672 · v3 · pith:HE75JPFInew · submitted 2010-08-16 · ✦ hep-ex · hep-ph· physics.ins-det

A Photon Regeneration Experiment for Axionlike Particle Search using X-rays

Remy Battesti (LNCMI) , Mathilde Fouch\'e (LNCMI) , C. Detlefs (ESRF) , T. Roth (ESRF) , Paul Berceau (LNCMI) , F. Duc (LNCMI) , P. Frings (LNCMI , LNCMP)
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G.L.J.A. Rikken (LNCMI Carlo Rizzo (LNCMI)
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classification ✦ hep-ex hep-phphysics.ins-det
keywords photonaxionlikeparticlesearchcouplingenergyexperimentphotons
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In this letter we describe our novel photon regeneration experiment for the axionlike particle search using a x-ray beam with a photon energy of 50.2 keV and 90.7 keV, two superconducting magnets of 3 T, and a Ge detector with a high quantum efficiency. A counting rate of regenerated photons compatible with zero has been measured. The corresponding limits on the pseudoscalar axionlike particle-two photon coupling constant is obtained as a function of the particle mass. Our setup widens the energy window of purely terrestrial experiments devoted to the axionlike particle search by coupling to two photons. It also opens a new domain of experimental investigation of photon propagation in magnetic fields.

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