TY  - JOUR
AU  - Caputo, A.
AU  - Liu, H. W.
AU  - Mishra-Sharma, S.
AU  - Pospelov, M.
AU  - Ruderman, J. T.
AU  - Urbano, A.
PY  - 2021
DA  - 2021//
TI  - Edges and Endpoints in 21-cm Observations from Resonant Photon Production
T2  - Phys. Rev. Lett.
JO  - Physical Review Letters
SP  - 011102
EP  - 7pp
VL  - 127
IS  - 1
PB  - Amer Physical Soc
AB  - We introduce a novel class of signatures-spectral edges and end points-in 21-cm measurements resulting from interactions between the standard and dark sectors. Within the context of a kinetically mixed dark photon, we demonstrate how resonant dark photon-to-photon conversions can imprint distinctive spectral features in the observed 21-cm brightness temperature, with implications for current, upcoming, and proposed experiments targeting the cosmic dawn and the dark ages. These signatures open up a qualitatively new way to look for physics beyond the Standard Model using 21-cm observations.
SN  - 0031-9007
UR  - https://arxiv.org/abs/2009.03899
UR  - https://doi.org/10.1103/PhysRevLett.127.011102
DO  - 10.1103/PhysRevLett.127.011102
LA  - English
N1  - WOS:000669052600001
ID  - Caputo_etal2021
ER  -