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Search for Stimulated Photon-Photon Scattering in Vacuum
Published 1 Jul 2010 in physics.optics | (1007.0104v1)
Abstract: We have searched for stimulated photon scattering in vacuum at a center of mass photon energy of 0.8 eV. The QED contribution to this process is equivalent to four wave mixing in vacuum. No evidence for gamma-gamma scattering was observed. The corresponding upper limit of the cross section is sigma_Lim=1.5 10{-48}cm2.
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