Top-antitop cross-section measurement strategy with the ATLAS Detector at the LHC

LeBlanc, M. E. (2011). Top-antitop cross-section measurement strategy with the ATLAS Detector at the LHC. https://scholar.acadiau.ca/islandora/object/theses:801

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Details:

Title

Top-antitop cross-section measurement strategy with the ATLAS Detector at the LHC

Author
LeBlanc, Matthew Edgar
Call Number

LE3 .A278 2011

Date

2011

Supervisor

Canepa, Anadi

Degree Grantor

Acadia University

Degree Name

Bachelor of Science

Degree Level

Honours

Discipline

Mathematics and Statistics

Affiliation

Mathematics & Statistics

Abstract

A measurement of the top-antitop pair production cross-section in the dimuon channel with the ATLAS detector was made, using in a data sample of L = 32:1 pb􀀀1 from the LHC's 2010 pp collisions at p s = 7 TeV. This analysis utilizes a binned likelihood tting algorithm to separate signal and background events. This method increases the acceptance of the signal and thus may reduce the statistical uncertainty of the measurement. The cross-section is measured to be t t = 148:8 39:8 (Stat:) (Syst:) pb using the missing transverse energy as the discriminating variable in the t, in agreement with the results of the ATLAS Top Physics Working Group.

Rights

The author retains copyright in this thesis. Any substantial copying or any other actions that exceed fair dealing or other exceptions in the Copyright Act require the permission of the author.

Permanent Link

https://scholar.acadiau.ca/islandora/object/theses:801

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