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pro vyhledávání: '"Peter Maták"'
Autor:
Mohammad Aghaie, Giovanni Armando, Angela Conaci, Alessandro Dondarini, Peter Maták, Paolo Panci, Zuzana Šinská, Robert Ziegler
Publikováno v:
Physics Letters B, Vol 856, Iss , Pp 138923- (2024)
We propose simple scenarios where the observed dark matter abundance arises from decays and scatterings of heavy quarks through freeze-in of an axion-like particle with mass in the 10keV−1MeV range. These models can be tested by future X-ray telesc
Externí odkaz:
https://doaj.org/article/c7e217713a354540861ef3e4434aceca
Autor:
Tomáš Blažek, Peter Maták
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 82, Iss 3, Pp 1-7 (2022)
Abstract 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
Externí odkaz:
https://doaj.org/article/e98152004bf047c5be1cfb84392334e0
Autor:
Tomáš Blažek, Peter Maták
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 12, Pp 1-8 (2021)
Abstract 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 presen
Externí odkaz:
https://doaj.org/article/fbd81f53398848f59a73a25c777e8390
Autor:
Peter Maták, Tomáš Blažek
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9574b7fad4276a5b5642a6d4ff6ae2b
http://arxiv.org/abs/2204.06983
http://arxiv.org/abs/2204.06983
Autor:
Peter Maták, Tomáš Blažek
Publikováno v:
European Physical Journal
European Physical Journal C: Particles and Fields, Vol 81, Iss 12, Pp 1-8 (2021)
European Physical Journal C: Particles and Fields, Vol 81, Iss 12, Pp 1-8 (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
Left–left squark mixing, $K^+\rightarrow \pi^+\nu\bar{\nu}$ and minimal supersymmetry with largetanβ
Autor:
Tomáš Blažek, Peter Maták
Publikováno v:
International Journal of Modern Physics A. 29:1450162
We analyze the role of the left–left squark mixing in the rare [Formula: see text] decay within the minimal supersymmetry with a large tan β. A Higgs boson mass of 125 GeV has been taken into account leading to correlation between stop masses and