Zobrazeno 1 - 10
of 1 161
pro vyhledávání: '"Blazek, Tomas"'
Publikováno v:
Phys.Rev.D 110 (2024) 5, 055042
Leptogenesis typically requires the introduction of heavy particles whose out-of-equilibrium decays are essential for generating a matter-antimatter asymmetry, according to one of Sakharov's conditions. We demonstrate that in Dirac leptogenesis, scat
Externí odkaz:
http://arxiv.org/abs/2404.16934
Autor:
Blažek, Tomáš, Maták, Peter
In their recent letter, Heeck et al. [Phys. Rev. D 108, L031703] introduced a simple model of leptogenesis, in which the asymmetry originates from the scattering processes only. Here we argue that their calculation violates some of the basic principl
Externí odkaz:
http://arxiv.org/abs/2308.14767
Publikováno v:
PoS DISCRETE2022 (2024) 027
We use an unconventional diagrammatic approach to formulate $CPT$ and unitarity constraints for higher-order $CP$ asymmetries entering the source term in the Boltzmann equation. Usually, the reaction rate asymmetries in these constraints are computed
Externí odkaz:
http://arxiv.org/abs/2302.11442
Publikováno v:
JCAP10(2022)042
Within the seesaw type-I leptogenesis, we formulate $CPT$ and unitarity constraints for the equilibrium reaction rate $CP$ asymmetries and consider thermal mass and quantum statistics. We demonstrate that including higher-order perturbative correctio
Externí odkaz:
http://arxiv.org/abs/2209.03829
Autor:
Maták, Peter, Blažek, Tomáš
Publikováno v:
PoS DISCRETE2020-2021 (2022) 080
We briefly explain a novel diagrammatic method for including thermal corrections in $CP$ asymmetric reaction rates entering the quantum Boltzmann equation. In thermal equilibrium, the asymmetries have to cancel precisely due to the $S$-matrix unitari
Externí odkaz:
http://arxiv.org/abs/2204.06983
Autor:
van der Pol, Luuk H.G., Blanck, Oliver, Grehn, Melanie, Blazek, Tomáš, Knybel, Lukáš, Balgobind, Brian V., Verhoeff, Joost J.C., Miszczyk, Marcin, Blamek, Slawomir, Reichl, Sabrina, Andratschke, Nicolaus, Mehrhof, Felix, Boda-Heggemann, Judit, Tomasik, Bartłomiej, Mandija, Stefano, Fast, Martin F.
Publikováno v:
In Radiotherapy and Oncology January 2025 202
Autor:
Blažek, Tomáš, Maták, Peter
Publikováno v:
Eur. Phys. J. C 82, 214 (2022)
In this work, a diagrammatic representation of thermal mass effects is derived from the $S$-matrix unitarity both in the classical and quantum Boltzmann equations. Within the example of the seesaw type-I leptogenesis, we discuss the connection of the
Externí odkaz:
http://arxiv.org/abs/2111.03419
Autor:
Blažek, Tomáš, Maták, Peter
Publikováno v:
Eur. Phys. J. C 81, 1050 (2021)
Nonequilibrium quantum field theory is often used to derive an approximation for the evolution of number densities and asymmetries in astroparticle models when a more precise treatment of quantum thermal effects is required. This work presents an alt
Externí odkaz:
http://arxiv.org/abs/2104.06395
Autor:
Blažek, Tomáš, Maták, Peter
Publikováno v:
Phys. Rev. D 103, L091302 (2021)
The main focus of this paper is to introduce a new method to control perturbative calculations of CP asymmetric reaction rates in the Boltzmann equation. CP asymmetries in particle reactions are traditionally calculated in terms of complex couplings,
Externí odkaz:
http://arxiv.org/abs/2102.05914
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.