A cosmologically consistent millicharged dark matter solution to the EDGES anomaly of possible string theory origin
Sign Up to like & getrecommendations! Published in 2021 at "Journal of High Energy Physics"
DOI: 10.1007/jhep12(2021)148
Abstract: Abstract Analysis of EDGES data shows an absorption signal of the redshifted 21-cm line of atomic hydrogen at z ∼ 17 which is stronger than expected from the standard ΛCDM model. The absorption signal interpreted… read more here.
Keywords: dark matter; physics; millicharged dark; hidden sector ... See more keywords
Direct millicharged dark matter cannot explain the EDGES signal
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.100.023528
Abstract: Heat transfer between baryons and millicharged dark matter has been invoked as a possible explanation for the anomalous 21-cm absorption signal seen by EDGES. Prior work has shown that the solution requires that millicharged particles… read more here.
Keywords: dark matter; direct millicharged; millicharged dark; matter ... See more keywords
Reviving millicharged dark matter for 21-cm cosmology
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.100.123011
Abstract: The existence of millicharged dark matter (mDM) can leave a measurable imprint on 21-cm cosmology through mDM-baryon scattering. However, the minimal scenario is severely constrained by existing cosmological bounds on both the fraction of dark… read more here.
Keywords: dark matter; mdm; millicharged dark; cosmology ... See more keywords