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The PVLAS experiment: measuring vacuum magnetic birefringence and dichroism with a birefringent Fabry-Perot cavity

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arxiv 1510.08052 v1 pith:6U36TVWL submitted 2015-10-27 physics.optics hep-exquant-ph

The PVLAS experiment: measuring vacuum magnetic birefringence and dichroism with a birefringent Fabry-Perot cavity

F. Della Valle , E. Milotti , A. Ejlli , U. Gastaldi , G. Messineo , G. Zavattini , R. Pengo , G. Ruoso This is my paper
classification physics.optics hep-exquant-ph
keywords birefringencecavityexperimentexperimentalmagneticvacuumfabry-perotlimit
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Vacuum magnetic birefringence was predicted long time ago and is still lacking a direct experimental confirmation. Several experimental efforts are striving to reach this goal, and the sequence of results promises a success in the next few years. This measurement generally is accompanied by the search for hypothetical light particles that couple to two photons. The PVLAS experiment employs a sensitive polarimeter based on a high finesse Fabry-Perot cavity. In this paper we report on the latest experimental results of this experiment. The data are analysed taking into account the intrinsic birefringence of the dielectric mirrors of the cavity. Besides the limit on the vacuum magnetic birefringence, the measurements also allow the model-independent exclusion of new regions in the parameter space of axion-like and milli-charged particles. In particular, these last limits hold also for all types of neutrinos, resulting in a laboratory limit on their charge.

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Cited by 5 Pith papers

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