A measurement of the atmospheric neutrino flux and oscillation parameters at the Sudbury Neutrino Observatory
Name
528746983-MIT.pdf
Description
Full printable version
Size
2.22 MB
Format
Adobe PDF
Checksum (MD5)
dc3574cb5616322c113237d5730267d1
Author(s)
Sonley, Thomas John
Advisor(s)
Joseph Formaggio.
Date Issued
2009
Publisher
Massachusetts Institute of Technology
Abstract
Through-going muon events are analyzed as a function of their direction of travel through the Sudbury Neutrino Observatory. Based on simulations and previous measurements, muons with a zenith angle of 1 < cos([theta]zenith) < 0:4 are selected as atmospheric neutrino-induced muons. A two-neutrino analysis of these events agrees with the oscillation parameters observed by the Super Kamiokande and Minos experiments, and places 2-D limits of [delta]m2 23 = 1:8+7:1 ??1:1 103 eV2 at the 68% confidence level, and sin2(2[theta]23) > 0:33 at the 90% confidence level. In addition, the flux of atmospheric neutrinos is measured in 1-D with a 68% confidence level to be 1:24+0:11 0:10 times the prediction of the BARTOL group based on SNO data alone, and 1:27+/-0.09 times the prediction when the oscillation parameters are constrained by the Super Kamiokande and Minos results.
Description
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2009.
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student submitted PDF version of thesis.
Includes bibliographical references (p. 119-121).
Subjects
Physics.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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