This thesis presents measurements of the cross section for the production of a <i>W</i> boson in association with jets and the ratio of the cross sections for the production of a <i>W</i> boson and a <i>Z</i> boson in association with jets. Both measurements are performed in proton-proton collisions at √s = 7 TeV with the ATLAS experiment at the Large Hadron Collider using a dataset corresponding to an integrated luminosity of 4.6 fb<sup>-1</sup>. The dataset allows for the exploration of a large kinematic range, including jet production up to a transverse momentum of 1 TeV and multiplicities up to seven jets. Results are presented as a function of jet transverse momenta and rapidities and as a function of event variables such as the scalar sum of the transverse momenta of the jets. Results as a function of dijet angular variables are also presented. The measurements are compared to several state-of-the-art QCD predictions including next-to-leading-order perturbative calculations, resummation calculations and Monte Carlo generators. Finally, the effect of the results on parton distribution functions is explored.
| Identifer | oai:union.ndltd.org:bl.uk/oai:ethos.bl.uk:684944 |
| Date | January 2015 |
| Creators | Sawyer, Craig Anthony |
| Contributors | Cooper-Sarkar, Amanda |
| Publisher | University of Oxford |
| Source Sets | Ethos UK |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Source | http://ora.ox.ac.uk/objects/uuid:9c8f606b-4b66-4a42-a200-11cf81ea84f0 |
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