Cosmic Microwave Background Constraints on Very Dark Photons
Date
2015
Authors
Fradette, Anthony
Pospelov, Maxim
Pradler, Josef
Ritz, Adam
Journal Title
Journal ISSN
Volume Title
Publisher
Physics Procedia
Abstract
We analyze the effects of a massive dark photon with mV > 1 MeV on the Cosmic Microwave Background (CMB). We calculate the freeze-in abundance and derive limits on the parameter space from energy injections in the CMB. We find that for dark vectors in the mass range 1 MeV < mV < 300 MeV, the model is already ruled out for effective electromagnetic coupling as low as 10−34 – 10-37
Description
Keywords
Dark photons, Hidden sector, Cosmic Microwave Background
Citation
Fradette, A., Pospelov, M., Pradler, J. & Ritz, A. (2015). Cosmic Microwave Background Constraints on Very Dark Photons. Physics Procedia, 61, 689-693. https://doi.org/10.1016/j.phpro.2014.12.081