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A search for muon neutrino to electron neutrino oscillations in the minos experiment

Citation

Ochoa-Ricoux, Juan Pedro (2010) A search for muon neutrino to electron neutrino oscillations in the minos experiment. Dissertation (Ph.D.), California Institute of Technology. http://resolver.caltech.edu/CaltechTHESIS:11022009-111710517

Abstract

We perform a search for muon neutrino to electron neutrino oscillations, a process which would manifest a nonzero value of the theta-13 mixing angle, in the MINOS long-baseline neutrino oscillation experiment. The analysis consists of searching for an excess of electron neutrino charged-current candidate events over the predicted backgrounds, made mostly of neutral-current events with high electromagnetic content. A novel technique to select electron neutrino events is developed, which achieves an improved separation between the signal and the backgrounds, and which consequently yields a better reach in theta-13. The backgrounds are predicted in the Far Detector from Near Detector measurements. An excess is observed in the Far Detector data over the predicted backgrounds, which is consistent with the background-only hypothesis at 1.2 standard deviations.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:neutrino; oscillations; electron; appearance; library; event; matching; minos;
Degree Grantor:California Institute of Technology
Division:Physics, Mathematics and Astronomy
Major Option:Physics
Awards:John Stager Stemple Memorial Prize in Physics, 2006
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Newman, Harvey B.
Thesis Committee:
  • McKeown, Robert D.
  • Weinstein, Alan Jay
  • Wise, Mark B.
  • Newman, Harvey B. (chair)
Defense Date:21 October 2009
Author Email:jpochoa (AT) gmail.com
Record Number:CaltechTHESIS:11022009-111710517
Persistent URL:http://resolver.caltech.edu/CaltechTHESIS:11022009-111710517
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5346
Collection:CaltechTHESIS
Deposited By: Juan Ochoa Ricoux
Deposited On:23 Dec 2009 16:36
Last Modified:27 Feb 2013 19:38

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