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Triple-Differential Measurement of the Dijet Cross Section at $\sqrt{s}$ = 13 TeV with the CMS Detector

Savoiu, Daniel

Abstract (englisch):
In light of the large quantity of data collected during the second operational run of the Large Hadron Collider (LHC) at CERN, which has made it possible to perform measurements at unprecedented energies with a high degree of statistical precision, the necessity of understanding and constraining the systematic effects on such measurements has become increasingly important. Precision measurements of jet observables in proton-induced collisions have proven instrumental in constraining the parton distribution functions (PDFs) which describe the internal structure of protons, and which remain one of the largest sources of uncertainty in many analyses performed at hadron colliders.

This thesis presents the first triple-differential measurement of the dijet production cross section performed in proton-proton collisions at a center-of-mass energy of 13 TeV, based on a data sample of 35.9 fb$^{-1}$ recorded by the CMS experiment at the Large Hadron Collider at CERN. The cross section is measured using anti-$k_\text{T}$ jets with radius parameters of R = 0.4 and R = 0.8 as a function of the dijet rapidity separation $y^{*}$ , the total boost of the dijet system $y_\text{b}$ , and either the average transverse momentum $\langle p_\text{T}\rangle_{1,2}$ or the invariant mass $m_\text{jj}$ of the dijet system as the third variable. ... mehr

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Volltext §
DOI: 10.5445/IR/1000129970
Veröffentlicht am 01.03.2021
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Experimentelle Teilchenphysik (ETP)
Publikationstyp Hochschulschrift
Publikationsdatum 01.03.2021
Sprache Englisch
Identifikator KITopen-ID: 1000129970
Verlag Karlsruher Institut für Technologie (KIT)
Umfang vi, 140 S.
Art der Arbeit Dissertation
Fakultät Fakultät für Physik (PHYSIK)
Institut Institut für Experimentelle Teilchenphysik (ETP)
Prüfungsdatum 10.07.2020
Referent/Betreuer Prof. G. Quast
Schlagwörter high-energy physics, particle physics, cern, lhc, jet physics, jets, hadronic jets, particle jets, cross section, quantum chromodynamics, qcd, cms, cms experiment, large hadron collider
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