More on the Hypercharge Portal into the Dark Sector

Abstract

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.

23 pages, 10 figures

References in corpus (16)

• PYTHIA 6.4 Physics and Manual
• Dark Matter Results from 225 Live Days of XENON100 Data
• A Tentative Gamma-Ray Line from Dark Matter Annihilation at the Fermi Large Area Telescope
• Higgs-field Portal into Hidden Sectors
• Search for photon line-like signatures from Dark Matter annihilations with H.E.S.S
• Constraints on the Galactic Halo Dark Matter from Fermi-LAT Diffuse Measurements
• Anomalies, Anomalous U(1)'s and generalized Chern-Simons terms
• Search for Dark Matter and Large Extra Dimensions in pp Collisions Yielding a Photon and Missing Transverse Energy
• Dark matter constraints from box-shaped gamma-ray features
• Fermi 130 GeV gamma-ray excess and dark matter annihilation in sub-haloes and in the Galactic centre
• Search for Production of Invisible Final States in Single-Photon Decays of Upsilon(1S)
• Anomaly driven signatures of new invisible physics at the Large Hadron Collider
• Gamma-ray Lines in the Fermi Data: is it a Bubble?
• Precision flavour physics with $B\to K\nu \bar{\nu }$ and $B\to K{l}^{+}{l}^{-}$
• Direct Dark Matter search with the XENON program
• Gamma-ray lines constraints in the NMSSM

Cited by in corpus (9)

• Mirror dark matter: Cosmology, galaxy structure and direct detection
• Thermal and non-thermal production of dark matter via Z'-portal(s)
• Decaying Vector Dark Matter as an Explanation for the 3.5 keV Line from Galaxy Clusters
• On Dark Matter Interactions with the Standard Model through an Anomalous $Z^{\prime }$
• Vector dark matter from split SU(2) gauge bosons
• Non-Abelian gauge fields as dark matter
• Hidden SU(2)_D vector dark matter with a scalar septuplet
• LHC constraints on dark matter with (130 GeV) gamma ray lines
• Naturally-Coupled Dark Sectors