ATLAS observes direct evidence of light-by-light scattering

Tuesday, August 15, 2017 - 06:02 in Physics & Chemistry

Physicists from the ATLAS experiment at CERN have found the first direct evidence of high energy light-by-light scattering, a very rare process in which two photons – particles of light – interact and change direction. The result, published today in Nature Physics, confirms one of the oldest predictions of quantum electrodynamics (QED).

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