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It is conjectured that dark matter (DM) was produced before inflation fromneutral particles present after the Big Bang and survived inflation due to aspecific coupling with gravitation, while the charged particles existing afterthe Big Bang disappeared during inflation in a process of chargenon-conservation. Ordinary matter was produced at a later stage at a lowertemperature following a symmetry restoring phase transition. In this way thenon-luminous character of dark matter and the existence of two types of matter,ordinary and dark, get a natural explanation. Because of the high temperaturespreceding inflation, the masses of particles produced during that time are toolarge to be detected by conventional particle physics methods and possibly willnever be detected.

Dark Matter as a consequence of electric charge non-conservation - will it remain dark forever?