Open AccessCosmic Microwave Background Constraints on Very Dark Photons
Author(s) -
Anthony Fradette,
Maxim Pospelov,
Josef Pradler,
Adam Ritz
Publication year - 2015
Publication title -
physics procedia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.26
H-Index - 61
ISSN - 1875-3892
DOI - 10.1016/j.phpro.2014.12.081
Subject(s) - cosmic microwave background , physics , photon , dark matter , microwave , astronomy , optics , quantum mechanics , anisotropy
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
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom