532 citations · 7.4k across the 95 of their papers we have counts for
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Observational Properties of Feebly Coupled Dark Matter
Matti Heikinheimo, Tommi Tenkanen, Kimmo Tuominen +1
We show that decoupled hidden sectors can have observational consequences. As a representative model example, we study dark matter production in the Higgs portal model with one rea…
Electroweak baryogenesis and gravitational waves from a real scalar singlet
Ville Vaskonen
We consider a real scalar singlet field which provides a strong first-order electroweak phase transition via its coupling to the Higgs boson, and gives a violating contributio…
Baryogenesis in the two doublet and inert singlet extension of the Standard Model
Tommi Alanne, Kimmo Kainulainen, Kimmo Tuominen +1
We investigate an extension of the Standard Model containing two Higgs doublets and a singlet scalar field (2HDSM). We show that the model can have a strongly first-order phase tra…
A Strong Electroweak Phase Transition from the Inflaton Field
Tommi Tenkanen, Kimmo Tuominen, Ville Vaskonen
We study a singlet scalar extension of the Standard Model. The singlet scalar is coupled non-minimally to gravity and assumed to drive inflation, and also couple sufficiently stron…
Reheating the Standard Model from a hidden sector
Tommi Tenkanen, Ville Vaskonen
We consider a scenario where the inflaton decays to a hidden sector thermally decoupled from the visible Standard Model sector. A tiny portal coupling between the hidden and the vi…
Observational Constraints on Decoupled Hidden Sectors
Matti Heikinheimo, Tommi Tenkanen, Kimmo Tuominen +1
We consider an extension of the Standard Model with a singlet sector consisting of a real (pseudo)scalar and a Dirac fermion coupled with the Standard Model only via the scalar por…