135 citations · 756 across the 20 of their papers we have counts for
21 papers
Finite-temperature bubble nucleation with shifting scale hierarchies
Maciej Kierkla, Philipp Schicho, Bogumila Swiezewska +2
Focusing on supercooled phase transitions in models with classical scale symmetry, we formulate a state-of-the art framework for computing the bubble-nucleation rate, accounting fo…
Reconstructing early universe evolution with gravitational waves from supercooled phase transitions
Adam Gonstal, Marek Lewicki, Bogumila Swiezewska
We study gravitational waves from supercooled cosmological first-order phase transitions. If such a transition is followed by inefficient reheating, the evolution history of the un…
Radiative symmetry breaking from the on-shell perspective
Bartosz Sojka, Bogumila Swiezewska
Models with classical scale symmetry, which feature radiative symmetry breaking, generically lead to a supercooled first-order phase transition in the early Universe resulting in a…
Gravitational waves from supercooled phase transitions: dimensional transmutation meets dimensional reduction
Maciej Kierkla, Bogumila Swiezewska, Tuomas V. I. Tenkanen +1
Models with radiative symmetry breaking typically feature strongly supercooled first-order phase transitions, which result in an observable stochastic gravitational wave background…
Conformal model for gravitational waves and dark matter: A status update
Maciej Kierkla, Alexandros Karam, Bogumila Swiezewska
We present an updated analysis of the first-order phase transition associated with symmetry breaking in the early Universe in a classically scale-invariant model extended with a ne…
Field-theoretic derivation of bubble-wall force
Marc Barroso Mancha, Tomislav Prokopec, Bogumila Swiezewska
We derive a general quantum field theoretic formula for the force acting on expanding bubbles of a first order phase transition in the early Universe setting. In the thermodynamic…
Gravitational waves from conformal symmetry breaking
Tomislav Prokopec, Jonas Rezacek, Bogumila Swiezewska
We consider the electroweak phase transition in the conformal extension of the standard model known as SU(2)cSM. Apart from the standard model particles, this model contains an add…
Systematic analysis of radiative symmetry breaking in models with extended scalar sector
Leonardo Chataignier, Tomislav Prokopec, Michael G. Schmidt +1
Radiative symmetry breaking (RSB) is a theoretically appealing framework for the generation of mass scales through quantum effects. It can be successfully implemented in models wit…
Conformal symmetry and the cosmological constant problem
Stefano Lucat, Tomislav Prokopec, Bogumila Swiezewska
We argue that, when a theory of gravity and matter is endowed with (classical) conformal symmetry, the fine tuning required to obtain the cosmological constant at its observed valu…
Single-scale Renormalisation Group Improvement of Multi-scale Effective Potentials
Leonardo Chataignier, Tomislav Prokopec, Michael G. Schmidt +1
We present a new method for renormalisation group improvement of the effective potential of a quantum field theory with an arbitrary number of scalar fields. The method amounts to…
One-loop contributions to neutral minima in the inert doublet model
P. M. Ferreira, Bogumila Swiezewska
The vacuum structure of the inert doublet model is analysed at the one-loop level using the effective potential formalism, to verify the validity of tree-level predictions for the…
One-loop inert and pseudo-inert minima
P. M. Ferreira, B. Swiezewska
We analyse the differences between inert and pseudo-inert vacua in the 2HDM, both at tree-level and one-loop. The validity of tree-level formulae for the relative depth of the pote…
Inert scalars and vacuum metastability around the electroweak scale
Bogumila Swiezewska
We analyse effective potential around the electroweak (EW) scale in the Standard Model extended with a heavy scalar doublet. We show that the additional scalars can have a strong i…
Universe in the light of LHC
Maria Krawczyk, Malgorzata Matej, Dorota Sokolowska +1
The Large Hadron Collider (LHC) provides data which give information on dark matter. In particular, measurements related to the Higgs sector lead to strong constraints on the invis…
Decay rates of the Higgs boson to two photons and Z plus photon in Z_2-symmetric Two Higgs Doublet Models
Bogumila Swiezewska
Analysis of the 125 GeV Higgs boson decay rates to two photons and Z plus photon in the Inert Doublet Model is presented. We study the constraints on the masses of the scalars (in…
Higgs -> , in the Inert Doublet Model
Maria Krawczyk, Dorota Sokolowska, Pawel Swaczyna +1
An analysis of the Higgs boson decay rates to and in the Inert Doublet Model is presented. We study the correlation between the two rates and perform extended analysis of…
2-photon decay rate of the scalar boson in the Inert Doublet Model
Bogumila Swiezewska, Maria Krawczyk
Motivated by experimental hints on the possibility of deviating from the SM predictions for the 2-photon decay rate of the 125 GeV SM-like scalar boson h, an analysis of this rate…
Constraining Inert Dark Matter by R_{γγ} and WMAP data
Maria Krawczyk, Dorota Sokolowska, Pawel Swaczyna +1
We discuss the constraints on the Dark Matter coming from the LHC Higgs data and WMAP relic density measurements for the Inert Doublet Model (IDM), which is one of the simplest ext…
2HDM with Z_2 symmetry in light of new LHC data
Maria Krawczyk, Dorota Sokolowska, Bogumila Swiezewska
Properties of the Z_2-symmetric Two Higgs Doublet Models (2HDM) are discussed and confronted with new LHC data for a 125 GeV Higgs particle. The particle discovered at LHC in 2012…
Diphoton rate in the Inert Doublet Model with a 125 GeV Higgs boson
Bogumila Swiezewska, Maria Krawczyk
An improved analysis of the diphoton decay rate of the Higgs boson in the Inert Doublet Model is presented together with critical discussion of the results existing in the literatu…
Yukawa independent constraints for Two Higgs Doublet Models with a 125 GeV Higgs boson
Bogumila Swiezewska
In this paper various constraints for the parameter spaces of two variants of the Two Higgs Doublet Model with a Z_2-symmetric potential are reconsidered, including the LHC data on…