Bansal, Vikas
(2010)
PROSPECTS OF LEPTOQUARK DISCOVERYWITH ATLAS AT THE LHC.
Doctoral Dissertation, University of Pittsburgh.
(Unpublished)
Abstract
Final states with high-pT leptons and jets are predicted by many Beyond the StandardModel (BSM) scenarios including leptoquarks, Left-Right Symmetry, various implementationsof Grand Unification Theory (GUT), and other models. Such theoretical models extendthe application of Quantum Field Theory to energies far above the Electroweak SymmetryBreaking (EWSB) energy scale and seek to provide a much more elegant and symmetricdescription of the fundamental forces. The implications of such models include possible answersto the origins of flavor, CP violation, baryogenesis, and other fundamental questionsbeyond EWSB.This dissertation describes the study of leptoquarks in dielectron-jets final states inproton-proton collisions at a center of mass energy of 14 TeV using ATLAS apparatus at theLarge Hadron Collider at CERN. The presented analysis is based on fully-simulated datasamples that contain two or more high-pT electron candidates and jets for an integratedluminosity of 100 / pb . Signal event selection, analysis algorithms, and suppression of SMbackgrounds are discussed. ATLAS can discover leptoquarks up to masses of 565 GeV at100 / pb for a branching ratio = 1 at a 5 sigma significance level.
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Details
| Item Type: |
University of Pittsburgh ETD
|
| Status: |
Unpublished |
| Creators/Authors: |
|
| ETD Committee: |
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| Date: |
27 January 2010 |
| Date Type: |
Completion |
| Defense Date: |
24 August 2009 |
| Approval Date: |
27 January 2010 |
| Submission Date: |
2 August 2009 |
| Access Restriction: |
No restriction; Release the ETD for access worldwide immediately. |
| Institution: |
University of Pittsburgh |
| Schools and Programs: |
Dietrich School of Arts and Sciences > Physics |
| Degree: |
PhD - Doctor of Philosophy |
| Thesis Type: |
Doctoral Dissertation |
| Refereed: |
Yes |
| Uncontrolled Keywords: |
leptoquarks; LHC; ATLAS; high-energy |
| Other ID: |
http://etd.library.pitt.edu/ETD/available/etd-08022009-215433/, etd-08022009-215433 |
| Date Deposited: |
10 Nov 2011 19:56 |
| Last Modified: |
15 Nov 2016 13:47 |
| URI: |
http://d-scholarship.pitt.edu/id/eprint/8833 |
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