Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Nakonieczny, Łukasz"'
Autor:
Nakonieczna, Anna, Nakonieczny, Łukasz
Publikováno v:
Eur. Phys. J. C (2022) 82:294
The paper discusses a collapse of a self-interacting electrically charged scalar field in the decoupling limit of the dilatonic Gauss-Bonnet gravity. The emerging spacetimes were either non-singular or singular and containing black holes of a Schwarz
Externí odkaz:
http://arxiv.org/abs/2109.03852
Autor:
Nakonieczna, Anna, Nakonieczny, Łukasz
Publikováno v:
Eur. Phys. J. C (2020) 80:1051
The objective of the paper was to examine gravitational evolutions in the Higgs--dark matter sector toy model. The real part of the Higgs doublet was modelled by a neutral scalar. Two dark matter candidates introduced were the dark photon and a charg
Externí odkaz:
http://arxiv.org/abs/2009.01600
Autor:
Nakonieczny, Łukasz
Publikováno v:
Acta Physica Polonica B Proceedings Supplement, vol 13 (2020) no 2
The effective field theory (EFT) turns out to be an instrument of an immense value in all aspects of modern particle physics being theory, phenomenology or experiment. In the paper I will show how to extend the systematic top down approach to constru
Externí odkaz:
http://arxiv.org/abs/2004.12320
Publikováno v:
JHEP11(2020)132
In this article we investigated the influence of the gravity induced higher dimensional operators on the issue of vacuum stability in a model containing two interacting scalar fields. As a framework we used the curved spacetime Effective Field Theory
Externí odkaz:
http://arxiv.org/abs/2004.12327
Autor:
Nakonieczny, Łukasz
Publikováno v:
JHEP01(2019)034
In the presented paper we tackle the problem of the effective field theory in curved spacetime (cEFT) construction. To this end, we propose to use the heat kernel method. After introducing the general formalism based on the well established formulas
Externí odkaz:
http://arxiv.org/abs/1811.01656
Publikováno v:
Int.J.Mod.Phys. D28, 1930006 (2019)
In this review paper, we comprehensively summarize numerical applications of double-null formalism for studying dynamics within the theory of gravity. By using the double-null coordinates, we can investigate dynamical black holes and gravitational ph
Externí odkaz:
http://arxiv.org/abs/1805.12362
Black hole initial data by numerical integration of the parabolic-hyperbolic form of the constraints
Publikováno v:
IJMPD30,2150111(2021)
The parabolic-hyperbolic form of the constraints is integrated numerically. The applied numerical stencil is $4^{th}$ order accurate (in the spatial directions) while 'time'-integration is made by using the method of lines with a $4^{th}$ order accur
Externí odkaz:
http://arxiv.org/abs/1712.00607
Publikováno v:
JCAP03(2018)024
We examined analytically and proposed a numerical model of an Abelian Higgs dark matter vortex in the spacetime of a stationary axisymmetric Kerr black hole. In analytical calculations the dark matter sector was modeled by an addition of a U (1)-gaug
Externí odkaz:
http://arxiv.org/abs/1707.02802
Publikováno v:
JHEP12(2016)064
Static configurations and a dynamical evolution of the system composed of a higher-dimensional spherically symmetric dilaton black hole and the Dirac-Goto-Nambu brane were investigated. The studies were conducted for three values of the dilaton coupl
Externí odkaz:
http://arxiv.org/abs/1610.01956
Autor:
Lalak, Zygmunt, Nakonieczny, Łukasz
The problem of explaining both inflationary and dark matter physics in the framework of a minimal extension of the Standard Model was investigated. To this end, the Standard Model completed by a real scalar singlet playing a role of the dark matter c
Externí odkaz:
http://arxiv.org/abs/1609.06887