First results from the OSQAR photon regeneration experiment: No light shining through a wall
OSQAR Collaboration: Pierre Pugnat (1), Lionel Duvillaret (2), Remy, Jost (3), Guy Vitrant (2), Daniele Romanini (3), Andrzej Siemko (1), Rafik, Ballou (4), Bernard Barbara (4), Michael Finger (5), Miroslav Finger (5), Jan, Hosek (6), Miroslav Kral (1, 6)
TL;DR
This paper reports initial results from the OSQAR experiment, setting new laboratory bounds on axion-like particles by searching for photon regeneration through a wall, and disclaims previous PVLAS findings.
Contribution
It introduces a novel method using buffer gas to enhance photon-axion conversion and provides the first experimental bounds on axion-like particles from the OSQAR setup.
Findings
New bounds on axion mass and coupling constant at 95% confidence level
Disclaims the PVLAS result with laboratory data
Demonstrates the effectiveness of buffer gas in photon regeneration experiments
Abstract
A new method to amplify the photon-axion conversions in magnetic field is proposed using a buffer gas at a specific pressure. As a first result, new bounds for mass and coupling constant for purely laboratory experiments aiming to detect any hypothetical scalars and pseudo-scalars which can couple to photons were obtained at 95% confidence level, excluding the PVLAS result newly disclaimed.
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