New Study Expands Search for "Dark Photons," a Leading Dark Matter Candidate
A new study published in Physical Review Letters suggests that 'dark photons' may not have heated the early universe as previously theorized. This finding expands the potential search area for dark matter candidates, as previous models had excluded certain parameters based on the heating hypothesis.
Why it matters
Understanding the nature of dark matter is fundamental to cosmology; this research shifts the focus of experimental searches for invisible matter that makes up most of the universe's mass.
More than fifty years after it was proposed, the search for Dark Matter continues, whether through cosmic surveys or theoretical studies. This mysterious, invisible matter is theorized to account for 85% of the Universe's mass. While it remains unconfirmed, substantial indirect evidence supports its existence, ranging from the rotational curves of galaxies and Dark Matter Haloes to gravitational lenses. In addition, several candidate particles have been proposed and tested against observational data.
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