Speaker
Mr
Sven Baumholzer
(Johannes Gutenberg-Universitaet Mainz)
Description
In the framework of the scotogenic model, which features radiative generation of neutrino
masses, we explore light dark matter scenario. Throughout the paper we chiefly focus on
keV-scale dark matter which can be produced either via freeze-in through the decays of the
new scalars, or from the decays of next-to-lightest fermionic particle in the spectrum, which
is produced through freeze-out. The latter mechanism is required to be suppressed as it
typically produces a hot dark matter component. Constraints from BBN are also considered
and in combination with the former production mechanism they impose the dark matter to
be light. For this scenario we consider signatures at High Luminosity LHC and proposed
future hadron and lepton colliders, namely FCC-hh and CLIC, focusing on searches with two
leptons and missing energy as a final state. While a potential discovery at High Luminosity
LHC is in tension with limits from cosmology, the situation greatly improves for future
colliders.
Primary author
Mr
Sven Baumholzer
(Johannes Gutenberg-Universitaet Mainz)
Co-authors
Alexander Segner
(Johannes Gutenberg-Universitaet Mainz)
Prof.
Pedro Schwaller
(Johannes Gutenberg University Mainz)
Mr
Vedran Brdar
(MPIK Heidelberg)
