We introduce a novel class of signatures---spectral edges and endpoints---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.
Description
Edges and Endpoints in 21-cm Observations from Resonant Photon Production
%0 Generic
%1 caputo2020edges
%A Caputo, Andrea
%A Liu, Hongwan
%A Mishra-Sharma, Siddharth
%A Pospelov, Maxim
%A Ruderman, Joshua T.
%A Urbano, Alfredo
%D 2020
%K library
%T Edges and Endpoints in 21-cm Observations from Resonant Photon
Production
%U http://arxiv.org/abs/2009.03899
%X We introduce a novel class of signatures---spectral edges and endpoints---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.
@misc{caputo2020edges,
abstract = {We introduce a novel class of signatures---spectral edges and endpoints---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.},
added-at = {2020-09-10T08:21:01.000+0200},
author = {Caputo, Andrea and Liu, Hongwan and Mishra-Sharma, Siddharth and Pospelov, Maxim and Ruderman, Joshua T. and Urbano, Alfredo},
biburl = {https://www.bibsonomy.org/bibtex/2a2f7bf62401a6efcc936ec46ba2ebd43/gpkulkarni},
description = {Edges and Endpoints in 21-cm Observations from Resonant Photon Production},
interhash = {3c5ca23ab054a87b435469fa0879c453},
intrahash = {a2f7bf62401a6efcc936ec46ba2ebd43},
keywords = {library},
note = {cite arxiv:2009.03899Comment: 5+6 pages, 3+1 figures},
timestamp = {2020-09-10T08:21:01.000+0200},
title = {Edges and Endpoints in 21-cm Observations from Resonant Photon
Production},
url = {http://arxiv.org/abs/2009.03899},
year = 2020
}