57 citations · 284 across the 20 of their papers we have counts for
20 papers
Stability of domain walls in models with asymmetric potentials
Tomasz Krajewski, Jan Henryk Kwapisz, Zygmunt Lalak +1
We study the evolution of cosmological domain walls in models with asymmetric potentials. Our research goes beyond the standard case of spontaneous breaking of an approximate symme…
Higgs domain walls in the thermal background
Tomasz Krajewski, Zygmunt Lalak, Marek Lewicki +1
Most cosmological models predict that the universe was hot and dense at the early stages of it's evolution. In this paper we analyse the influence of the thermal bath of Standard M…
Gravitational wave signals and cosmological consequences of gravitational reheating
Michał Artymowski, Olga Czerwińska, Zygmunt Lalak +1
Reheating after inflation can proceed even if the inflaton couples to Standard Model (SM) particles only gravitationally. However, particle production during the transition between…
Domain walls in the extensions of the Standard Model
Tomasz Krajewski, Zygmunt Lalak, Marek Lewicki +1
Our main interest is the evolution of domain walls of the Higgs field in the early Universe. The aim of this paper is to understand how dynamics of Higgs domain walls could be infl…
Non-minimally coupled gravity and vacuum stability
Olga Czerwińska, Zygmunt Lalak, Marek Lewicki +1
We investigate the properties of vacuum decay taking into account a non-minimal coupling to gravity. We extend the standard thin-wall solution to include the non-minimal coupling a…
Domain walls and gravitational waves in the Standard Model
Tomasz Krajewski, Zygmunt Lalak, Marek Lewicki +1
We study domain walls which can be created in the Standard Model under the assumption that it is valid up to very high energy scales. We focus on domain walls interpolating between…
Multi-phase induced inflation in theories with non-minimal coupling to gravity
Michal Artymowski, Zygmunt Lalak, Marek Lewicki
In this paper we investigate the induced inflation with two flat regions: one Starobinsky-like plateau in big field regime and one shorter plateau around the saddle point of the Ei…
The impact of non-minimally coupled gravity on vacuum stability
Olga Czerwińska, Zygmunt Lalak, Marek Lewicki +1
We consider vacuum decay in the presence of a non-minimal coupling to gravity. We extend the usual thin-wall solution to include the non-minimal coupling. We also perform a full nu…
Gauge fixing and renormalisation scale independence of tunneling rate in abelian Higgs model and in the Standard Model
Zygmunt Lalak, Marek Lewicki, Paweł Olszewski
We explicitly show perturbative gauge fixing independence of the tunneling rate to a stable radiatively induced vacuum in the abelian Higgs model. We work with a class of gau…
Implications of extreme flatness in a general f(R) theory
Michal Artymowski, Zygmunt Lalak, Marek Lewicki
We discuss a modified gravity theory defined by . We consider both finite and infinite number of terms in the series while requiring that th…
Inflation and dark energy from gravity
Michal Artymowski, Zygmunt Lalak, Marek Lewicki
Inflationary paradigm has several issues, such as the pre-inflationary horizon problem or the eternal inflation. To avoid that the standard Starobinsky inflation has been extended…
Standard Model vacuum stability in the presence of gauge invariant nonrenormalizable operators
Zygmunt Lalak, Marek Lewicki, Paweł Olszewski
Analysis of the Standard Model effective potential can reveal certain properties of the UV completion of SM. We discuss the issue of stability of the SM potential after inclusion o…
Saddle point inflation from higher order corrections to Higgs/Starobinsky inflation
Michal Artymowski, Zygmunt Lalak, Marek Lewicki
We explore two saddle point inflationary scenarios in the context of higher order corrections related to different generalisations of general relativity. Firstly, we deal with Jord…
Saddle point inflation from theory
Michal Artymowski, Zygmunt Lalak, Marek Lewicki
We analyse several saddle point inflationary scenarios based on power-law models. We investigate inflation resulting from $f(R) = R + α_n M^{2(1-n)}R^n + α_{n+1}M^{-2n}R^{n+…
Features of electroweak symmetry breaking in five dimensional SUSY models
Zygmunt Lalak, Marek Lewicki, Moritz McGarrie +1
We explore the phenomenological predictions of a supersymmetric standard model, with a large extra dimension and unifying gauge couplings. The modified five dimensional renormalisa…
Hints of BSM physics in the SM effective potential
Zygmunt Lalak, Marek Lewicki, Pawel Olszewski
Investigation of the structure of the Standard Model effective potential at very large field strengths opens a window towards new phenomena and can reveal properties of the UV comp…
Higgs boson mass and high-luminosity LHC probes of supersymmetry with vectorlike top quark
Zygmunt Lalak, Marek Lewicki, James D. Wells
We consider an extension of the MSSM with an added vectorlike top partner. Our aim is to revisit to what extent such an extension can raise the Higgs boson mass through radiative c…
Upper bounds on sparticle masses from muon g-2 and the Higgs mass and the complementarity of future colliders
Marcin Badziak, Zygmunt Lalak, Marek Lewicki +2
Supersymmetric (SUSY) explanation of the discrepancy between the measurement of and its SM prediction puts strong upper bounds on the chargino and smuon masses. At the sa…
Higher-order scalar interactions and SM vacuum stability
Zygmunt Lalak, Marek Lewicki, Pawel Olszewski
Investigation of the structure of the Standard Model effective potential at very large field strengths opens a window towards new phenomena and can reveal properties of the UV comp…
Fine-tuning in GGM and the 126 GeV Higgs particle
Zygmunt Lalak, Marek Lewicki
In this paper we reanalyze the issue of fine-tuning in supersymmetric models which feature Generalized Gauge Mediation (GGM) in the light of recent measurement of the mass of the l…