%0 Thesis
%A Dominguez Damiani, Daniela
%T Cross Section measurements of t―t pair production in the boosted regime in proton-proton collisions at √s=13 TeV with the CMS experiment at the Large Hadron Collider
%N DESY-THESIS-2020-006
%I Universität Hamburg
%V Dissertation
%C Hamburg
%M PUBDB-2020-02131
%M DESY-THESIS-2020-006
%B DESY-THESIS
%P 274
%D 2020
%Z Dissertation, Universität Hamburg, 2019
%X In this thesis measurements of the t―t pair production at the very high transverse momentum are presented. When a top quark is produced with very high momentum the decay products are collimated in the direction of the quark, and they can be clustered within a single large cone size jet. The decay products of  top quarks with transverse momentum larger than 400 GeV are likely having this boosted configuration. A definition of a particle-level top jet is developed which is independent of the partonic configuration. The measurements are performed with proton-proton collision data collected by the CMS experiment at the LHC, at the center of mass energy of √s=13 TeV and they are presented differentially in the transverse momentum of the top jets and differentially in the azimuthal angle ∆ϕ between the two top-jets. The results are compared to theory predictions provided from different Monte Carlo event generators: i.e Powheg+Pythia8, Powheg+Herwigpp and aMC@NLO+Pythia8.
%F PUB:(DE-HGF)3 ; PUB:(DE-HGF)11
%9 BookDissertation / PhD Thesis
%R 10.3204/PUBDB-2020-02131
%U https://bib-pubdb1.desy.de/record/438672