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Light dark photon dark matter from inflation.

Yuichiro NakaiRyo NambaZiwei Wang
Published in: Journal of high energy physics : JHEP (2020)
We discuss the possibility of producing a light dark photon dark matter through a coupling between the dark photon field and the inflaton. The dark photon with a large wavelength is efficiently produced due to the inflaton motion during inflation and becomes non-relativistic before the time of matter-radiation equality. We compute the amount of production analytically. The correct relic abundance is realized with a dark photon mass extending down to 10 -21 eV.
Keyphrases
  • living cells
  • monte carlo
  • mass spectrometry