36 citations · 37 across the 9 of their papers we have counts for
9 papers
Singlet Extended Mirror Standard Model World as Dark Matter and Gravitational Waves Imprints of a High Scale Mirror Phase Transitions
Asterios T. Papadopoulos, V. K. Oikonomou
We study a mirror Standard Model world which contains a high scale duplicate of the Standard Model, and includes a singlet mirror scalar extension coupled to the mirror Higgs parti…
High-scale Mirror Standard Model Dark Matter, Dark Phase Transitions and Gravitational Waves Implications
V. K. Oikonomou
We consider a scenario for dark matter in the Universe, according to which the dark matter sector is comprised by a dark Standard Model sector which interacts only gravitationally…
Imprints of a Second Order Electroweak Phase Transition on the Stochastic Gravitational Wave Background
V. K. Oikonomou
In this work we shall study the impact of a second order electroweak phase transition occurring at GeV on the energy spectrum of the stochastic gravitational background…
Topological Electroweak Phase Transition
V. K. Oikonomou
In this work we shall consider the effects of a non-trivial topology on the effective potential of the Standard Model. Specifically we shall assume that the spacetime topology is $…
Theoretical Probes of Higgs-Axion non-perturbative Couplings
V. K. Oikonomou
In this work we investigate the phenomenological implications of several non-trivial axion-Higgs couplings, which cover most of the possible non-perturbative scenarios. Specificall…
Electroweak Phase Transition in Singlet Extensions of The Standard Model with Dimension-Six Operators
V. K. Oikonomou, Apostolos Giovanakis
The significance of the electroweak phase transition is undeniable, and although initially it was believed that it was second-order, it is now believed that it is a first-order tra…
Non-minimal Derivative Coupling Theories Compatible with GW170817
V. K. Oikonomou
In this work we aim to revive the interest for non-minimal derivative coupling theories of gravity, in light of the GW170817 event. These theories include a string motivated non-mi…
Axion-Neutrino Couplings, Late-time Phase Transitions and the Far Infrared Physics
V. K. Oikonomou
The far infrared physics is a fascinating topic for theoretical physics, since the foundation of quantum field theory and neutrinos seem to be strongly related with the far infrare…
Effects of the Axion Through the Higgs Portal on Primordial Gravitational Waves During the Electroweak Breaking
V. K. Oikonomou
We investigate the effects of short axion kination eras on the energy spectrum of the primordial gravitational waves corresponding to modes that re-enter the Hubble horizon at the…