2013/05/29 by Florian Domingo, Oleg Lebedev, Yann Mambrini +3
Physics and Astronomy · #Astrophysics #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark matter #Fermion #Hidden sector #Hypercharge #Monochromatic color #Particle physics #Particle physics theoretical and experimental studies #Phenomenology (philosophy) #Philosophy #Physics #hep-ph
paper · pdf · doi:10.1007/jhep09(2013)020
23 pages, 10 figures
arxiv created 2013/05/29 · openalex publication_date 2013/09/01 · arxiv updated 2015/06/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
A bstract If the hidden sector contains more than one U(1) groups, additional dim-4 couplings (beyond the kinetic mixing) between the massive U(1) fields and the hypercharge generally appear. These are of the form similar to the Chern-Simons interactions. We study the phenomenology of such couplings including constraints from laboratory experiments and implications for dark matter. The hidden vector fields can play the role of dark matter whose characteristic signature would be monochromatic gamma ray emission from the galactic center. We show that this possibility is consistent with the LHC and other laboratory constraints, as well as astrophysical bounds.