Dipartimento di Fisica - Tesi di Dottorato
Permanent URI for this collectionhttps://lisa.unical.it/handle/10955/35
Questa collezione raccoglie le Tesi di Dottorato afferenti al Dipartimento di Fisica dell'Università della Calabria.
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Item Measurements of single, double and triple differential cross-sections of top-quark pair production, in the lepton+jets channel, in pp collisions at Ös=13 TeV using the data collected by the ATLAS detector during the full Run 2.(Università della Calabria, 2023-05-03) Curcio, Francesco; Cipparrone, Gabriella; Tassi, Enrico; Faucci Giannelli, MicheleIn this thesis the differential cross-sections for the inclusive production of t t pairs have been measured at a center-of-mass energy of p s = 13 TeV. The data were collected by the ATLAS detector during the period spanning from 2015 to 2018, also known as Run 2, and correspond to an integrated luminosity of 140 fb1. The top-quark pair events were selected in the lepton (either electron or muon) plus jets channel. The single, double and triple differential cross-sections have been measured as a function of the kinematic variables of the t t system or the hadronically decaying top-quark and extrapolated to the full phase-space. The large amount of t t pairs produced at LHC gives the opportunity to perform stringent tests of pQCD by comparing the measured spectra with the theoretical fixed-order NNLO and Monte Carlo predictions.Item Construction and test of high resolution and radiation hard particle detectors for fundamental physics at the LHC experiments and search for signal of new physics through displaced and collimated jet-like structures with ATLAS experiment(Università della Calabria, 2021-11-08) Carducci, Giovandomenico; Critelli, Salvatore; Schioppa, Marco