3-8 July 2016
The University of Melbourne
Australia/Melbourne timezone

Dark Forces in the Sky: signals from Z' and the dark Higgs

4 Jul 2016, 16:30
20m
Carillo Gantner Theatre ()

Carillo Gantner Theatre

Carrillo Gantner Theatre, Sidney Myer Asia Centre The University of Melbourne VIC 3010 Australia
Talk Dark Matter and Particle Astrophysics Dark Matter and Particle Astrophysics

Speaker

Dr Yi Cai (The University of Melbourne)

Description

We consider the indirect detection signals for a self-consistent hidden U (1) sector, containing a fermionic dark matter candidate, dark gauge boson and a Dark Higgs. The presence of an additional scalar, the Dark Higgs, provides a mass generation mechanism for the dark sector particles and is required to avoid unitarity violation at high energies. We find that the inclusion of the additional scalar to the sector opens up a new two-body channel and allows fermionic dark matter annihilation to be used to probe the properties of a scalar final state. We examine the phenomenology of the sector with a focus on this new process, and determine the limits on the model parameter space from Fermi data on Dwarf Spheriodal Galaxies and other relevant experiments.

Primary author

Dr Yi Cai (The University of Melbourne)

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