532 citations · 1.7k across the 53 of their papers we have counts for
5 papers · 1 filter
Vacuum Stability and Perturbativity of SU(3) Scalars
Matti Heikinheimo, Kristjan Kannike, Florian Lyonnet +3
We calculate the vacuum stability conditions and renormalisation group equations for the extensions of standard model with a higher colour multiplet scalar up to the representation…
Collisionless shocks in self-interacting dark matter
Matti Heikinheimo, Martti Raidal, Christian Spethmann +1
Self-interacting dark matter has been proposed as a solution to small scale problems in cosmological structure formation, and hints of dark matter self scattering have been observe…
The Dawn of FIMP Dark Matter: A Review of Models and Constraints
Nicolás Bernal, Matti Heikinheimo, Tommi Tenkanen +2
We present an overview of scenarios where the observed Dark Matter (DM) abundance consists of Feebly Interacting Massive Particles (FIMPs), produced non-thermally by the so-called…
WIMP miracle of the second kind
Matti Heikinheimo, Tommi Tenkanen, Kimmo Tuominen
We study dark matter production in scenarios where a scale invariant hidden sector interacts with the Standard Model degrees of freedom via a Higgs portal . If the…
Dark-photon searches via production at colliders
Sanjoy Biswas, Emidio Gabrielli, Matti Heikinheimo +1
We study the associated production followed by the Higgs decay into a photon plus an invisible and massless dark photon, at future high-energy facilitie…