MINOS Document 8096-v1

Measurement of the Muon Neutrino Inclusive Charged Current Cross Section on Iron Using the MINOS Detector

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Laura Loiacono
Updated by:
Laura Loiacono
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13 Apr 2011, 09:55
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13 Apr 2011, 09:55
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21 Apr 2011, 14:41
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The Neutrinos at the Main Injector (NuMI) facility at Fermi
National Accelerator Laboratory (FNAL) produces an intense
muon neutrino beam used by the Main Injector Neutrino
Oscillation Search (MINOS), a neutrino oscillation
experiment, and the Main INjector ExpeRiment v-A,(MINERvA),
a neutrino interaction experiment. Absolute neutrino cross
sections are determined via  = N/, where the
numerator is the measured number of neutrino interactions
in the MINOS Detector and the denominator is the flux of
incident neutrinos. Many past neutrino experiments have
measured relative cross sections due to a lack of precise
measurements of the incident neutrino flux, normalizing to
better established reaction processes, such as quasielastic
neutrino-nucleon scattering. But recent measurements of
neutrino interactions on nuclear targets have brought to
light questions about our understanding of nuclear effects
in neutrino interactions. In this thesis the numu inclusive
charged current cross section on iron is measured using the
MINOS Detector. The MINOS detector consists of alternating
planes of steel and scintillator. The MINOS detector is
optimized to measure muons produced in charged current numu
interactions. Along with muons, these interactions produce
hadronic showers. The neutrino energy is measured from the
total energy the particles deposit in the detector. The
incident neutrino flux is measured using the muons produced
alongside the neutrinos in meson decay. Three ionization
chamber monitors located in the downstream portion of the
NuMI beamline are used to measure the muon flux and thereby
infer the neutrino flux by relation to the underlying
pion and kaon meson flux. This thesis describes the muon
flux instrumentation in the NuMI beam, its operation over
the two year duration of this measurement, and the
techniques used to derive the neutrino flux.
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