Speaker
Dr
Tzu-Chiang Yuan
(National Tsing Hua University)
Description
The hidden Stueckelberg Z' model is augmented by a pair of Dirac fermions. We show
that this hidden fermion-antifermion pair could be a milli-charged dark matter
candidate with a viable relic density. Existing terrestrial and astrophysical
searches on milli-charged particles do not place severe constraints on this hidden
fermion.
We calculate the flux of monochromatic photons coming from the Galactic center due to
pair annihilation of these milli-charged particles and show that it is within reach
of the next generation gamma-ray experiments.
The characteristic signature of this theoretical endeavor is that the Stueckelberg Z'
boson has a large invisible width decaying into the hidden fermion-antifermion pair.
We show that existing Drell-Yan data do not constrain this model yet. Various
channels of singly production of this Z' boson at the LHC and ILC are explored.
Authors
Prof.
Kingman Cheung
(National Tsing Hua University)
Dr
Tzu-Chiang Yuan
(National Tsing Hua University)
