Sterile neutrino oscillations in MINOS and hadron production in pC collisions Metadata

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Title

  • Main Title Sterile neutrino oscillations in MINOS and hadron production in pC collisions

Creator

  • Author: Tinti, Gemma Maria
    Creator Type: Personal
  • Author: U., /Oxford
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization
    Contributor Info: USDOE

Publisher

  • Name: Fermi National Accelerator Laboratory
    Place of Publication: Batavia, Illinois
    Additional Info: Fermi National Accelerator Laboratory (FNAL), Batavia, IL

Date

  • Creation: 2010-07-01

Language

  • English

Description

  • Content Description: MINOS is a long baseline neutrino oscillation experiment, starting with a muon-neutrino beam, for the precise measurement of the atmospheric neutrino oscillation parameters |{Delta}m{sup 2}| and {theta}{sub 23}. The Near Detector measures the neutrino flux and spectra before oscillations. The beam propagates for 735 km to the Far Detector, which measures the depleted spectrum after oscillations. The depletion can be interpreted as {nu}{sub {mu}} {yields} {nu}{sub {tau}} oscillations. Subdominant {nu}{sub {mu}} {yields} {nu}{sub e} oscillations may be allowed if the mixing angle {theta}{sub 13} {ne} 0. The two detectors are functionally identical in order to cancel systematic errors when using the Near Detector data to constrain the Far Detector prediction. A crucial part of the analysis is the relative calibration between the two detectors, which is known at the 2% level. A calibration procedure to remove the time and temperature dependence of the detector response using through-going cosmic muons is presented here. Although the two-detector approach reduces the systematic uncertainties related to the neutrino flux, a cross check on the neutrino parent meson ratios is performed in this thesis. The cross sections of mesons produced in proton-carbon interactions from the NA49 experiment have been measured and the results have been compared to the MINOS expectations. A neutrino oscillation analysis allowing mixing to a sterile neutrino is performed, under the assumption that the additional mass splitting is {Omicron}(1 eV{sup 2}). The analysis uses the energy spectrum of the neutral current interaction products, as neutral current interactions are sensitive to sterile neutrino mixing but not to the active flavour neutrino mixing. The neutrino oscillation parameters have been found to be: |{Delta}m{sup 2}| = 2.43{sub -0.18}{sup +0.21} x 10{sup -3} eV{sup 2}, {theta}{sub 23} = 40.27{sup o}{sub -5.17}{sup +14.64}, {theta}{sub 24} = 0.00{sup o}{sup +5.99} and {theta}{sub 34} = 0.00{sup o}{sup +24.57} under the assumption that {theta}{sub 13} = 12{sup o} (limited by the CHOOZ experiment) or |{Delta}m{sup 2}| = 2.43{sub -0.18}{sup +0.20} x 10{sup -3} eV{sup 2}, {theta}{sub 23} = 39.09{sup o}{sub -4.89}{sup +16.71}, {theta}{sub 24} = 0.00{sup o}{sup +4.79} and {theta}{sub 34} = 0.00{sup o}{sup +17.39} if {theta}{sub 13} is assumed to be zero.
  • Physical Description: 237 pages

Subject

  • Keyword: Calibration
  • Keyword: Neutral Currents
  • Keyword: Spectra
  • Keyword: Forecasting
  • Keyword: Cosmic Muons
  • Keyword: Cross Sections
  • Keyword: Mesons
  • Keyword: Neutrinos
  • Keyword: Production
  • Keyword: Hadrons
  • STI Subject Categories: 72 Physics Of Elementary Particles And Fields
  • Keyword: Temperature Dependence Experiment-Hep
  • Keyword: Oscillations
  • Keyword: Neutral-Current Interactions
  • Keyword: Neutrino Oscillation
  • Keyword: Experiment-Hep

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Thesis or Dissertation

Format

  • Text

Identifier

  • Report No.: FERMILAB-THESIS-2010-44
  • Grant Number: AC02-07CH11359
  • DOI: 10.2172/992263
  • Office of Scientific & Technical Information Report Number: 992263
  • Archival Resource Key: ark:/67531/metadc1015233