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A combined muon-neutrino and electron-neutrino oscillation search at MiniBooNE [electronic resource].

Published:
Washington, D.C. : United States. Dept. of Energy, 2006.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:
422 pages : digital, PDF file
Additional Creators:
Fermi National Accelerator Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary:
MiniBooNE seeks to corroborate or refute the unconfirmed oscillation result from the LSND experiment. If correct, the result implies that a new kind of massive neutrino, with no weak interactions, participates in neutrino oscillations. MiniBooNE searches for ν{sub μ} → ν{sub e} oscillations with the Fermi National Accelerator Laboratory 8 GeV beam line, which produces a ν{sub μ} beam with an average energy of ≈ 0.8 GeV and an intrinsic ν{sub e} content of 0.4%. The neutrino detector is a 6.1 m radius sphere filled with CH₂, viewed by 1540 photo-multiplier tubes, and located 541 m downstream from the source. This work focuses on the estimation of systematic errors associated with the neutrino flux and neutrino interaction cross section predictions, and in particular, on constraining these uncertainties using in-situ MiniBooNE ν{sub μ} charged current quasielastic (CCQE) scattering data. A data set with ≈ 100,000 events is identified, with 91% CCQE purity. This data set is used to measure several parameters of the CCQE cross section: the axial mass, the Fermi momentum, the binding energy, and the functional dependence of the axial form factor on four-momentum transfer squared. Constraints on the ν{sub μ} and ν{sub e} fluxes are derived using the ν{sub μ} CCQE data set. A Monte Carlo study of a combined ν{sub μ} disappearance and ν{sub e} appearance oscillation fit is presented, which improves the ν{sub μ} → ν{sub e} oscillation sensitivity of MiniBooNE with respect to a ν{sub e} appearance-only fit by 1.2-1.5σ, depending on the value of Δm².
Report Numbers:
E 1.99:fermilab-thesis-2006-44
fermilab-thesis-2006-44
Subject(s):
Other Subject(s):
Note:
Published through SciTech Connect.
07/01/2006.
"fermilab-thesis-2006-44"
Monroe, Jocelyn R.
Funding Information:
AC02-07CH11359
View MARC record | catkey: 14710251