3 ms·
It sounded like this interaction was special because of the super high energy of the photon and the super strong magnetic field near the supernova. At lower en
by throwaway81523 4y ago
It sounded like this interaction was special because of the super high energy of the photon and the super strong magnetic field near the supernova. At lower energies there would not have been an interaction. Presumably another occasion when those conditions existed was the Big Bang. So a lot of the universe's dark matter would have been created then, under this picture.