Although many theories locate hypothetical phenomena beyond the Standard Model at
energy scales far above the current experimental reach, tiny deviations from the Standard …

Abstract So far, the Standard Model of particle physics has been proven well compatible with
data obtained from collider experiments. The discovery of a Higgs boson at the Large …

Measurements of inclusive and normalized differential cross sections of the associated
production of top quark-antiquark and bottom quark-antiquark pairs, ttbb, are presented. The …

The field of experimental particle physics measures data from large high energy particle
colliders and make comparisons to theoretical model of physics to create a better …

According to perturbative calculations, the effective potential of the Standard Model should
have a new minimum, well beyond the Planck scale, which is much deeper than the …

This thesis presents measurements where top quarks are produced in association with a
Higgs boson or a W boson in final states with leptons. The data used in these studies …

RESUMEN (en español) En esta tesis se han presentado medidas de producción de quarks
top en asociación con un bosón de Higgs o un bosón W en estados finales con leptones …

What is matter around us made of? This question has been repeatedly pondered by
philosophers and scientists since Ancient Greece and further developed through …

The top quark is the most massive elementary particle in the SM, which makes it play an
important role in this theory and many of its extensions. This thesis presents the …

This article presents the observation of four-top-quark ($\rm t\bar {t} t\bar {t} $) production in
proton-proton collisions by the ATLAS and CMS experiments at the CERN LHC. The …