20.500.12556/RUL-160733 Tvorba parov Higgsovih bozonov ter kvarkov top in anti-top v hadronskih trkalnikih kot test Yukawine sklopitve. Production of Higgs bosons and top quark pairs at hadron colliders as tests of top Yukawa coupling Največja in hkrati ena izmed najslabše eksperimentalno določenih sklopitev standardnega modela osnovnih delcev in interakcij je tako imenovana Yukawina sklopitev med kvarkom t ter Higgsovim bozonom ($y_\mathrm{t}$). Znotraj standadnega modela je $y_\mathrm{t}$ tesno povezana z maso kvarka t, ta zveza pa je lahko kršena v razširitvah standardnega modela. V takih primerih lahko z upoštevanjem elektrošibke umeritvene invariance in metod efektivne teorije polja napovemo obstoj novega, še ne opaženega procesa — hkratne tvorbe parov Higgsovih bozonov ter kvarkov t in anti-t v hadronskih trkalnikih. Tema magistrskega dela je teoretična obravnava poglavitnih karakteristik tega procesa na velikem hadronskem trkalniku ter projekcija senzitivnosti na $y_\mathrm{t}$ s pomočjo analitičnih izračunov in simulacij Monte Carlo. The largest and at the same time one of the least experimentally determined couplings of the standard model of elementary particles and interactions is the so-called Yukawa coupling between the top quark and the Higgs boson ($y_\mathrm{t}$). Within the standard model, $y_\mathrm{t}$ is closely related to the mass of the top quark, but this relationship can be violated in extensions of the standard model. In such cases, considering the electroweak gauge invariance and methods of effective field theory, we can predict the existence of a new, yet unobserved process — the simultaneous production of pairs of Higgs bosons and top and anti-top quarks in hadron colliders. The topic of this master's thesis is the theoretical examination of the main characteristics of this process at the Large Hadron Collider and the projection of sensitivity to $y_\mathrm{t}$ using analytical calculations and Monte Carlo simulations. standardni model kvark top Higgsov bozon Yukawina sklopitev efektivna teorija polja Willsonov koeficient formalizem kappa standard model top quark Higgs boson Yukawa coupling effective field theory Willson coefficient kappa formalism true false false Slovenski jezik Angleški jezik Magistrsko delo/naloga 2024-09-04 08:15:14 2024-09-04 08:15:18 2025-08-08 13:20:05 0000-00-00 00:00:00 2024 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 142488 206670083 12543.pdf 12543.pdf 1 5A4D3C8CB6573E5F31C16DF3602A878D 7caf14e91ec5a30457875b1314dbfd7ac66573303c8dad6ebbfdafaecca87502 0f23bcb3-6a85-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=189505 Fakulteta za matematiko in fiziko 0 0 0