The PVLAS experiment: measuring vacuum magnetic birefringence and dichroism with a birefringent Fabry–Perot cavity
By F. Della Valle, A. Ejlli, U. Gastaldi, G. Messineo, E. Milotti, R. Pengo, G. Ruoso, G. Zavattini. 2015
206 citations recorded by the source corpus.
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 a new 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.
Subfields: Atomic and Molecular Physics, and Optics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/1be06286bfb17f6e3f4d44df42d1a6c2df6e8c12
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In Atomic and Molecular Physics, and Optics
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Citations in the corpus
- The landscape of QCD axion models (2020, unknown): “The most recent reported constraints on the axion-photon coupling are comparable to the OSQAR bound but extend to slightly higher mass [446].”
- The PVLAS experiment: A 25 year effort to measure vacuum magnetic birefringence (2020, methodology): “Data were taken from the experiments BFRT [83], PVLAS-LNL [74, 75], PVLAS-Test [145], PVLAS-FE [104], BMV [19] and OVAL [20] and are normalised to the number of passes and to the wavelength.”
- TASI Lectures on the Strong CP Problem and Axions (2018, background): “Polarizationbased experiments search for the change in polarization that results from this birefringent effect [148].”