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New PVLAS results and limits on magnetically induced optical rotation and ellipticity in vacuum
In 2006 the PVLAS collaboration reported the observation of an optical rotation generated in vacuum by a magnetic field. To further check against possible instrumental artifacts, several upgrades toExpand
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Experimental observation of optical rotation generated in vacuum by a magnetic field.
We report the experimental observation of a light polarization rotation in vacuum in the presence of a transverse magnetic field. Assuming that data distribution is Gaussian, the average measuredExpand
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Experimental method to detect the magnetic birefringence of vacuum
We describe the principle and the status of the PVLAS experiment which is being assembled at INFN Laboratori Nazionali di Legnaro (Legnaro, Padua, Italy) to look for coherent effects, related to theExpand
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A novel measurement of the muon capture rate in liquid hydrogen by the lifetime technique
Abstract The muon nuclear capture rate by protons has been measured by comparing the lifetime τ μ − of negative muons stopped in liquid hydrogen with the lifetime τ μ + of positive muons. We get τ μExpand
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Limits on Low Energy Photon-Photon Scattering from an Experiment on Magnetic Vacuum Birefringence
Experimental bounds on induced vacuum magnetic birefringence can be used to improve present photon-photon scattering limits in the electronvolt energy range. Measurements with the Polarizzazione delExpand
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Observation of Massive Muon Pairs in Hadron Collisions
Muon pairs in the mass range $1l{m}_{\ensuremath{\mu}\ensuremath{\mu}}l6.7 \frac{\mathrm{Gev}}{{c}^{2}}$ have been observed in collisions of high-energy protons with uranium nuclei. At an incidentExpand
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Effects of nearly massless, spin-zero particles on light propagation in a magnetic field
Abstract Very light or massless spin-zero particles coupled to two photons, such as axions or genuine Goldstone bosons, induce small changes in the polarization state of a laser beam travelling in aExpand
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Search for photon regeneration in a magnetic field
We have searched for the regeneration of photons propagating in a transverse magnetic field. Such an effect would reveal the existence of light scalar or pseudoscalar particles such as the axion thatExpand
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Experimental Observation of Optical Rotation Generated in Vacuum by a Magnetic Field
We report the experimental observation of a light polarization rotation in vacuum in the presence of a transverse magnetic field. Assuming that data distribution is Gaussian, the average measuredExpand
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Measurement of the birefringence properties of the reflecting surface of an interferential mirror
We have set up an apparatus to measure the ellipticity acquired by a linearly polarized light beam after a single quasi-normal reflection on an interferential mirror. Results of measurementsExpand
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