Can a pair of colliding gamma rays create matter?

Assuming that the gamma rays are of equal energies, if they aren't I'll get to that later, then when they collide they will create a pair that consists of an electron and a positron (an anti-electron). So yes, they will “create” matter. If one has more energy then that excess energy will be turned into excess kinetic energy. read more

3) Two gamma rays, which are simply very high energy photons, can interact and create, for example, two jets of hadronic particles (protons, neutrons, etc.). Gamma rays in the universe are limited to an energy of 80 TeV. read more

The gamma ray energy is transformed into matter, with the strong electrical field of the nucleus acting as a catalyst. This pair production occurs more frequently than the Compton effect for high energies, but remains marginal in the field of radioactive phenomena. read more

To create an electron-positron pair, the total energy of the photons, in the rest frame, must be at least 2m e c 2 = 2 × 0.511 MeV = 1.022 MeV (m e is the mass of one electron and c is the speed of light in vacuum), an energy value that corresponds to soft gamma ray photons. read more