steevey Posted February 5, 2011 Author Share Posted February 5, 2011 First calculations of rate of e+/e- pair production in photon-photon collision was done by Lev Landau in 1934 http://en.wikipedia....Matter_creation Thanks swan, THERES some actual evidence. Everything D H posted only stated interactions between photons and other matter or particles with mass. Link to comment Share on other sites More sharing options...
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