Could 'dark photons' explain dark matter?
New research suggests that if dark matter is composed of "dark photons," it would not have heated the early cosmos like scientists thought.
New research suggests that dark photons may not have heated the early cosmos as previously thought. If dark matter is composed of dark photons, it could potentially be detected in ways not previously considered. Dark matter, which outweighs everyday matter five to one, remains elusive because it doesn't interact with light. The dark photon, a hypothetical particle carrying a force other than electromagnetism, has been a candidate for dark matter.
Previous research indicated that dark photons would have converted into ordinary photons during the early universe, heating it up significantly and leaving detectable traces. This severely limited the search parameters for dark photons, but new computer simulations suggest that conversion may have stopped before significant heating could occur.
This discovery could expand the search for dark matter by opening up new possibilities and expanding the parameters in which dark photons could exist.
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