17-22 July 2016
Master Cutlers Hall
Europe/London timezone

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

20 Jul 2016, 15:20
20m
Venue: Cutlers' Drawing Room (First Floor); Chair: Malcolm Fairbairn; Session Manager: Anthony Ezeribe ()

Venue: Cutlers' Drawing Room (First Floor); Chair: Malcolm Fairbairn; Session Manager: Anthony Ezeribe

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. It also opens up a new process that can probe regions of parameter space which is not possible with other commonly considered s-wave annihilation processes. 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)

Co-authors

Dr. Nicole F. Bell (The University of Melbourne) Ms. Rebecca K. Leane (The University of Melbourne)

Presentation Materials

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