Astrophysical aspects of milli-charged dark matter in a Higgs-Stueckelberg model

Abstract

An extension of the Standard Model is studied, in which two new vector bosons are introduced, a first boson $Z^{\prime }$ coupled to the SM by the usual minimal coupling, producing an enlarged gauge sector in the SM. The second boson $A^{\prime }$ field, in the dark sector of the model, remains massless and originates a dark photon ${\gamma }^{\prime }$. A hybrid mixing scenario is considered based on a combined Higgs and Stueckelberg mechanisms. In a Compton-like process a photon scattered by a WIMP is converted into a dark photon. This process is studied, in an astrophysical application obtaining an estimate of the impact on stellar cooling of white dwarfs and neutron stars.

References in corpus (12)

• A Theory of Dark Matter
• Improved Naturalness with a Heavy Higgs: An Alternative Road to LHC Physics
• New results from DAMA/LIBRA
• Results from a Low-Energy Analysis of the CDMS II Germanium Data
• Neutrino mass, Dark Matter and Baryon Asymmetry via TeV-Scale Physics without Fine-Tuning
• A Consistent Dark Matter Interpretation For CoGeNT and DAMA/LIBRA
• Extra-weakly Interacting Dark Matter
• A Model of TeV Scale Physics for Neutrino Mass, Dark Matter and Baryon Asymmetry and its Phenomenology
• Search for heavy narrow dilepton resonances in pp collisions at sqrt(s) = 7 TeV and sqrt(s) = 8 TeV
• Probing a Very Narrow $Z^{\prime }$ Boson with CDF and D0 Data
• The Leptonic Higgs as a Messenger of Dark Matter
• Equilibrium Structure and Radial Oscillations of Dark Matter Admixed Neutron Stars