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Measurement Of The Top Quark Pair Production Cross Section In 7 TeV pp Collisions

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Title: Measurement Of The Top Quark Pair Production Cross Section In 7 TeV pp Collisions
Author(s): Anghel, Ioana Maria
Advisor(s): Gerber, Cecilia
Contributor(s): Adams, Mark; Hofman, David; Keung, Wai-Yee; Schwanenberger, Christian
Department / Program: Physics
Graduate Major: Physics
Degree Granting Institution: University of Illinois at Chicago
Degree: PhD, Doctor of Philosophy
Genre: Doctoral
Subject(s): oton-proton collision LHC CMS production cross section top quark pair Compact Muon Solenoid Large Hadron Collider
Abstract: In this thesis we present the measurement of the top quark pair production cross section in pp collisions at a center of mass energy of 7 TeV, using 36/pb of data collected with the CMS experiment at the LHC. The selection of the data sample is based on the final state with one isolated, high transverse momentum muon, missing transverse energy and at least three hadronic jets. The top-antitop content of the selected sample is enhanced by requiring the presence of at least one jet consistent with b-quark hadronization. The measured cross section of 153.7 ± 9.0(stat.)+28.2(-24.4)(syst.) ± 6.1(lumi) pb is in good agreement with higher-order QCD calculations for a top quark of mass 173 GeV/(c*c).
Issue Date: 2012-02-15
Type: Thesis
Description: Dissertation 2011
URI: http://hdl.handle.net/10027/8137
Rights Information: Copyright 2011 Ioana Anghel
Date Available in INDIGO: 2012-02-15
 

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