Model independent search for new physics at the Tevatron
Name
318328132-MIT.pdf
Description
Full printable version
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48.34 MB
Format
Adobe PDF
Checksum (MD5)
a32d1f5b61fd0528f1b2adbfeda4262a
Author(s)
Choudalakis, Georgios
Advisor(s)
Peter Fisher.
Date Issued
2008
Publisher
Massachusetts Institute of Technology
Abstract
The Standard Model of elementary particles can not be the final theory. There are theoretical reasons to expect the appearance of new physics, possibly at the energy scale of few TeV. Several possible theories of new physics have been proposed, each with unknown probability to be confirmed. Instead of arbitrarily choosing to examine one of those theories, this thesis is about searching for any sign of new physics in a model-independent way. This search is performed at the Collider Detector at Fermilab (CDF). The Standard Model prediction is implemented in all final states simultaneously, and an array of statistical probes is employed to search for significant discrepancies between data and prediction. The probes are sensitive to overall population discrepancies, shape disagreements in distributions of kinematic quantities of final particles, excesses of events of large total transverse momentum, and local excesses of data expected from resonances due to new massive particles. The result of this search, first in 1 fb-1 and then in 2 fb-1, is null, namely no considerable evidence of new physics was found.
Description
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2008.
Includes bibliographical references (p. 235-242).
Subjects
Physics.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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