
This paper investigates the production of sub-GeV millicharge dark matter particles through the freeze-in mechanism within a U(1)X hidden sector, emphasizing the crucial role of hidden sector temperature evolution and clarifying common misunderstandings about millicharge generation.


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sub-gev-millicharge-dark-matter-production-via-the-freeze-in-mechanism-in-a-u-1-x-hidden-sector


Sub-GeV Millicharge Dark Matter Production via the Freeze-in Mechanism in a U(1)X Hidden Sector
