title: Measurement of Vector Boson plus Jet  Production Cross Sections and Dark  Matter Interpretation with the ATLAS  Detector
creator: Weber, Sebastian Mario
subject: ddc-530
subject: 530 Physics
description: A measurement of Z boson plus jet, W boson plus jet and photon plus jet production at high transverse boson momentum in proton-proton collisions at √s = 13 TeV is presented. The measurement  is performed using data collected with the ATLAS detector at the Large Hadron Collider with an  integrated luminosity of 139 fb −1 . Differential cross sections are measured for final states with the  Z boson decaying to a pair of neutrinos or a pair of oppositely charged electrons or muons, the W  boson decaying to an electron-neutrino or a muon-neutrino pair and for final states containing at  least one photon. The cross sections are measured both in a monojet-like topology, where the boson  recoils against at least one energetic jet (p T ≥ 120 GeV) and in a vector boson fusion topology with  at least two jets separated in rapidity. The measured cross sections are compared to next-to-leading  order QCD predictions from Sherpa and are found to agree within the uncertainties. A measurement  of cross section ratios is also presented to highlight the effect of correlated systematic uncertainties.  Furthermore the measured cross sections are used in a goodness-of-fit test to quantify the agreement  with the Standard Model. Good agreement is observed in a combined fit across all measured final  states. As no excess over the Standard model predictions is found, the measured cross sections are  interpreted in the context of beyond the Standard Model physics. Improved exclusion limits are set  on a model predicting pair production of weakly interacting Dark Matter.
date: 2023
type: Dissertation
type: info:eu-repo/semantics/doctoralThesis
type: NonPeerReviewed
format: application/pdf
identifier: https://archiv.ub.uni-heidelberg.de/volltextserverhttps://archiv.ub.uni-heidelberg.de/volltextserver/32929/1/main_pdfa.pdf
identifier: DOI:10.11588/heidok.00032929
identifier: urn:nbn:de:bsz:16-heidok-329299
identifier:   Weber, Sebastian Mario  (2023) Measurement of Vector Boson plus Jet Production Cross Sections and Dark Matter Interpretation with the ATLAS Detector.  [Dissertation]     
relation: https://archiv.ub.uni-heidelberg.de/volltextserver/32929/
rights: info:eu-repo/semantics/openAccess
rights: http://archiv.ub.uni-heidelberg.de/volltextserver/help/license_urhg.html
language: eng