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Study Of Jet And Missing Transverse Energy Performance In Dijet Events With ATLAS Data

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Study Of Jet And Missing Transverse Energy Performance In Dijet Events With ATLAS Data

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Title: Study Of Jet And Missing Transverse Energy Performance In Dijet Events With ATLAS Data
Author: Sahu, Sushmita
Abstract: The Large Hadron Collider(LHC) is the world's largest particle collider at CERN, Geneva, operating at a center of mass energy of 7 TeV . The Toroidal LHC Apparatus (ATLAS)is one of two general purpose detectors at the LHC. It is responsible for measuring particles produced in proton-proton collisions and to search for new particles. The High Energy Physics group at UTA has been involved with designing, construction and commissioning of the ATLAS Tile Calorimeter, one of the sub-detectors of ATLAS. One of the components of Tile Cal, the Intermediate Tile Calorimeter (ITC) was constructed at UTA. UTA has been actively involved with the performance and calibration of the ITC. This thesis analyzes jet calibration and performance in the central region of the Calorimeter for di-jet events collected by ATLAS in 2011. The thesis also studies the performance and resolution of missing transverse energy, ETmiss. The performances of the Calorimeter for different regions of pseudo-rapidity and for varying transverse momentum have been studied in detail. This dissertation will in addition focus on the performance and calibration of the ITC region.
URI: http://hdl.handle.net/10106/9557
Date: 2012-04-11

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