2026-09-18T19:32:34Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/774902022-01-13T07:54:41Zcom_1721.1_7582com_1721.1_7581col_1721.1_131022
Joseph Formaggio.
Ott, Richard Anthony, III
Massachusetts Institute of Technology. Dept. of Physics.
Massachusetts Institute of Technology. Department of Physics
2013-03-01T15:11:19Z
2013-03-01T15:11:19Z
2011
2011
http://hdl.handle.net/1721.1/77490
827299031
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2011.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 199-204).
To measure the regeneration of electron neutrinos during passage through the Earth via the MSW effect, the difference in electron neutrino flux between day and night is measured at the Sudbury Neutrino Observatory (SNO). To be able to distinguish an actual discrepancy from an artifact, the detector properties and backgrounds are studied in regard to both a diurnal difference and a difference in the detector for upgoing v. downgoing neutrinos. This thesis focuses on the signal extraction part of this process, by which the neutrino fluxes are determined from the processed data by means of a Markov Chain Monte Carlo method. Recognizing that this effect is expected to have an energy dependence, the asymmetry is modeled as an affine function of energy. This measurement yields an asymmetry in the neutrino flux of ... measured in MeV.
by Richard Anthony Ott, III.
Ph.D.
204 p.
eng
Massachusetts Institute of Technology
M.I.T. theses are protected by
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http://dspace.mit.edu/handle/1721.1/7582
Physics.
Looking for matter enhanced neutrino oscillations via day v. night asymmetries in the NCD phase of the Sudbury Neutrino Observatory
Thesis
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<Abstract>To measure the regeneration of electron neutrinos during passage through the Earth via the MSW effect, the difference in electron neutrino flux between day and night is measured at the Sudbury Neutrino Observatory (SNO). To be able to distinguish an actual discrepancy from an artifact, the detector properties and backgrounds are studied in regard to both a diurnal difference and a difference in the detector for upgoing v. downgoing neutrinos. This thesis focuses on the signal extraction part of this process, by which the neutrino fluxes are determined from the processed data by means of a Markov Chain Monte Carlo method. Recognizing that this effect is expected to have an energy dependence, the asymmetry is modeled as an affine function of energy. This measurement yields an asymmetry in the neutrino flux of ... measured in MeV.</Abstract>
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