Searching for the dark force with 21-cm spectrum in light of EDGES

The EDGES Collaboration has recently announced the detection of the 21-cm spectrum with an absorption profile centred at 78 megahertz, of which the depth is deeper than that expected by the standard cosmological paradigm. To enrich the heating process of baryons due to scattering with dark matter du...

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Bibliographic Details
Main Authors: Chunlong Li, Yi-Fu Cai
Format: Article
Language:English
Published: Elsevier 2019-01-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269318308499