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Estimation and modelling of Standard Model backgrounds in the search for W' gauge bosons with ATLAS (µ channel)

Resource type
Thesis type
(Thesis) M.Sc.
Date created
2011-06-23
Authors/Contributors
Author: Ali, Suvayu
Abstract
This thesis discusses the estimation and modelling of the Standard Model background contribution to the search for heavy W' gauge boson resonance in the W' -> µν channel. Smearing techniques for the Monte Carlo simulations to match data are explored, followed by a data driven technique to estimate the QCD contribution to the background using sidebands. And finally a next-to-leading-order cross-section correction factor to the electroweak background from higher order QCD and EW diagrams is pursued. We find the QCD background contribution is small in high transverse mass (mT) tails of the Standard Model background. We also find the higher order cross-section correction factors for the background can be significant.
Document
Identifier
etd6682
Copyright statement
Copyright is held by the author.
Permissions
The author granted permission for the file to be printed and for the text to be copied and pasted.
Scholarly level
Supervisor or Senior Supervisor
Thesis advisor: Stelzer, Bernd
Member of collection
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etd6682_SAli.pdf 6.49 MB

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