282 citations · 4.3k across the 74 of their papers we have counts for
6 papers · 1 filter
Phase Transitions and Gravitational Waves in a Model of Scalar Dark Matter
Nico Benincasa, Andrzej Hryczuk, Kristjan Kannike +1
Theories with more than one scalar field often exhibit phase transitions producing potentially detectable gravitational wave (GW) signal. In this work we study the semi-annihilatin…
Constraining the Higgs Trilinear Coupling from an Quadruplet with Bounded-from-Below Conditions
Kristjan Kannike
Integrating out a heavy scalar can cause the Higgs trilinear coupling to deviate from its Standard Model value: a good example is provided by an quadruplet. Constraints on…
Pseudo-Goldstone dark matter in a radiative inverse seesaw scenario
Kristjan Kannike, Aleksei Kubarski, Luca Marzola +1
We consider a scale-invariant inverse seesaw model with dynamical breaking of gauge symmetry and lepton number. In some regions of the parameter space, the Majoron - the pseudo-Gol…
Dark matter induced dynamical symmetry breaking
Kristjan Kannike
We consider the classically scale invariant Higgs-dilaton model of dynamical symmetry breaking extended with an extra scalar field that plays the role of dark matter. The Higgs bos…
The 2HD+a model: collider, dark matter and gravitational wave signals
Giorgio Arcadi, Nico Benincasa, Abdelhak Djouadi +1
We perform a comprehensive study of a model in which the Higgs sector is extended to contain two Higgs doublet fields, with the four types of possibilities to couple to standard fe…
Vacuum Stability and Radiative Symmetry Breaking of the Scale-Invariant Singlet Extension of Type II Seesaw Model
Bayu Dirgantara, Kristjan Kannike, Warintorn Sreethawong
The questions of the origin of electroweak symmetry breaking and neutrino mass are two major puzzles in particle physics. Neutrino mass generation requires new physics beyond the S…