Speaker
Dr
Christian Gross
(Helsinki University)
Description
I discuss the scenario of a dark U(1) or SU(N) gauge group coupled to the Standard Model via the Higgs portal. It turns out that minimal CP-conserving hidden Higgs sectors entail stable massive gauge fields which fall into the WIMP category of dark matter candidates. For SU(N), N>2, DM consists of three components, two of which are degenerate in mass. In all of the cases, there are substantial regions of parameter space where the direct and indirect detection as well as relic abundance constraints are satisfied.
Primary author
Dr
Christian Gross
(Helsinki University)
Co-authors
Oleg Lebedev
(Helsinki University)
Yann Mambrini
(LPT Orsay)