Measurement of the neutrino component of an antineutrino beam observed by a nonmagnetized detector

Journal Article · Sat Oct 01 04:00:00 EDT 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.84.072005· OSTI ID:21607745

Aguilar-Arevalo, A A ^[1]; Anderson, C E; Fleming, B T; Linden, S K; Spitz, J ^[2]; Brice, S J; Brown, B C; Ford, R; Garcia, F G; Kobilarcik, T; Marsh, W; Moore, C D; Polly, C C; Russell, A D; Stefanski, R J; Zeller, G P ^[3]; Bugel, L; Conrad, J M; Karagiorgi, G; Nguyen, V ^[4]

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1. Instituto de Ciencias Nucleares, Universidad Nacional Autonoma de Mexico, D.F. 04510 (Mexico)
2. Yale University, New Haven, Connecticut 06520 (United States)
3. Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)
4. Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

Two methods are employed to measure the neutrino flux of the antineutrino-mode beam observed by the MiniBooNE detector. The first method compares data to simulated event rates in a high-purity {nu}{sub {mu}}-induced charged-current single {pi}{sup +} (CC1{pi}{sup +}) sample while the second exploits the difference between the angular distributions of muons created in {nu}{sub {mu}} and {nu}{sub {mu}} charged-current quasielastic (CCQE) interactions. The results from both analyses indicate the prediction of the neutrino flux component of the predominately antineutrino beam is overestimated--the CC1{pi}{sup +} analysis indicates the predicted {nu}{sub {mu}} flux should be scaled by 0.76{+-}0.11, while the CCQE angular fit yields 0.65{+-}0.23. The energy spectrum of the flux prediction is checked by repeating the analyses in bins of reconstructed neutrino energy, and the results show that the spectral shape is well-modeled. These analyses are a demonstration of techniques for measuring the neutrino contamination of antineutrino beams observed by future nonmagnetized detectors.

• OSTI ID: 21607745
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 84; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ALGEBRAIC CURRENTS
ANGULAR DISTRIBUTION
ANTILEPTONS
ANTIMATTER
ANTINEUTRINO BEAMS
ANTINEUTRINOS
ANTIPARTICLE BEAMS
ANTIPARTICLES
BEAMS
BOSONS
CHARGED CURRENTS
COMPARATIVE EVALUATIONS
CURRENTS
DISTRIBUTION
ELEMENTARY PARTICLES
ENERGY SPECTRA
EVALUATION
FERMIONS
HADRONS
INTERACTIONS
LEPTON BEAMS
LEPTONS
MASSLESS PARTICLES
MATTER
MESONS
MUON NEUTRINOS
MUONS
NEUTRINO BEAMS
NEUTRINOS
PARTICLE BEAMS
PIONS
PIONS PLUS
PSEUDOSCALAR MESONS
SIMULATION
SPECTRA