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Precision Measurements of the Top Quark Pair Production Cross Section in the Single Lepton Channel with the ATLAS Experiment

Praezisionsmessungen des Topquark Paarproduktions Wechselwirkungsquerschnittes im Zerfallskanal mit einzelnen Leptonen am ATLAS Experiment

by Anna Christine Henrichs
Doctoral thesis
Date of Examination:2012-04-19
Date of issue:2012-05-10
Advisor:Prof. Dr. Arnulf Quadt
Referee:Prof. Dr. Arnulf Quadt
Referee:Prof. Dr. Ulrich Husemann
crossref-logoPersistent Address: http://dx.doi.org/10.53846/goediss-2943

 

 

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Abstract

English

Two precision measurements of the top quark pair production cross section in the lepton+jets channel are accomplished using data taken by the ATLAS experiment at the Large Hadron Collider at CERN. The data corresponds to proton-proton collisions taken in 2010 and 2011 at a center-of-mass energy of 7 TeV. The measurement using data from 2010 achieves an overall uncertainty of 12%, while the measurement using 2011 data reaches a precision of 6.6%. Both measurements are in good agreement with theoretical predictions in the framework of the Standard Model of particle physics.
Keywords: Particle Physics; HEP; ATLAS; LHC; Top Quarks

Other Languages

Zwei Praezisionsmessungen des Produktionswechselwirkungsquerschnittes von Topquark Paaren im Lepton+Jets Kanal in Proton-Proton-Kollisionen bei einer Schwerpunktsenergie von 7 TeV wurden in den Daten des ATLAS Experiments am Large Hadron Collider am CERN durchgefuehrt. Die Messung in Daten aus dem Jahr 2010 erreicht eine Praezision von 12%, die Messung in Daten aus dem Jahr 2011 eine Praezision von 6.6%. Beide Messungen sind in guter Uebereinstimmung mit theoretischen Vorhersagen im Rahmen des Standard Modells der Teilchenphysik.
Schlagwörter: Teilchenphysik; ATLAS; LHC; Top Quarks
 

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