QCD radiation in top-antitop and Z+jets final states [electronic resource] : precision measurements at ATLAS / Kiran Joshi.
Joshi, Kiran, author.; Academy of Transdisciplinary Learning & Advanced Studies.
2015
QC793.3.Q35
Available Online

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Title QCD radiation in top-antitop and Z+jets final states [electronic resource] : precision measurements at ATLAS / Kiran Joshi.
Author Joshi, Kiran, author.
ISBN 9783319196534 electronic book
3319196537 electronic book
9783319196527
Published Cham : Springer, 2015.
Language English
Description 1 online resource.
Call Number QC793.3.Q35
Dewey Decimal Classification 539.7548
Summary This thesis contains new research in both experimental and theoretical particle physics, making important contributions in each. Two analyses of collision data from the ATLAS experiment at the LHC are presented, as well as two phenomenological studies of heavy coloured resonances that could be produced at the LHC. The first data analysis was the measurement of top quark-antiquark production with a veto on additional jet activity. As the first detector-corrected measurement of jet activity in top-antitop events it played an important role in constraining the theoretical modelling, and ultimately reduced these uncertainties for ATLAS's other top-quark measurements by a factor of two. The second data analysis was the measurement of Z+2jet production and the observation of the electroweak vector boson fusion (VBF) component. As the first observation of VBF at a hadron collider, this measurement demonstrated new techniques to reliably extract VBF processes and paved the way for future VBF Higgs measurements. The first phenomenological study developed a new technique for identifying the colour of heavy resonances produced in proton-proton collisions. As a by-product of this study an unexpected and previously unnoticed correlation was discovered between the probability of correctly identifying a high-energy top and the colour structure of the event it was produced in. The second phenomenological study explored this relationship in more detail, and could have important consequences for the identification of new particles that decay to top quarks.
Note "Doctoral thesis accepted by the University of Manchester, UK."
Bibliography, etc. Note Includes bibliographical references.
Access Note Access limited to authorized users.
Source of Description Online resource; title from PDF title page (viewed June 17, 2015).
Added Corporate Author Academy of Transdisciplinary Learning & Advanced Studies.
Series Springer theses.
Linked Resources Online Access
Record Appears in Online Resources > Ebooks
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Introduction
The Standard Model
Experimental Apparatus
Reconstructing Physics Objects
Event-Filter Muon Isolation
Jet Vetoing in Top-Antitop Events
Studies and Applications of Jet Vetoing in Boosted Topologies
Measurements of Electroweak Z Boson + Dijet Production
Conclusions.

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