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Autor:
Antonio Racioppi, Martti Raidal, Andi Hektor, Kristjan Kannike, Gert Hütsi, Christian Spethmann, Ville Vaskonen, Hardi Veermäe, Carlo Marzo, Luca Marzola, Sean Fraser
Publikováno v:
Physics Letters
Physics Letters B, Vol 785, Iss, Pp 159-164 (2018)
Physics Letters B, Vol 785, Iss, Pp 159-164 (2018)
The recently claimed anomaly in the measurement of the 21 cm hydrogen absorption signal by EDGES at $z\sim 17$, if cosmological, requires the existence of new physics. The possible attempts to resolve the anomaly rely on either (i) cooling the hydrog
Publikováno v:
Physics Letters B, Vol 785, Iss, Pp 429-433 (2018)
Physics Letters
Physics Letters
The recent observation of the 21-cm absorption signal by the EDGES experiment provides a new observational window into the dynamics of the young Universe. Based on this result, we constrain the properties of ALPs and excited dark matter via the energ