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

Authors

A. A. Aguilar-Arevalo, Universidad Nacional Autónoma de México
C. E. Anderson, Yale University
S. J. Brice, Fermi National Accelerator Laboratory
B. C. Brown, Fermi National Accelerator Laboratory
L. Bugel, Massachusetts Institute of Technology
J. M. Conrad, Massachusetts Institute of Technology
R. Dharmapalan, The University of Alabama
Z. Djurcic, Argonne National Laboratory
B. T. Fleming, Yale University
R. Ford, Fermi National Accelerator Laboratory
F. G. Garcia, Fermi National Accelerator Laboratory
G. T. Garvey, Los Alamos National Laboratory
J. Grange, University of Florida
J. A. Green, Indiana University Bloomington
R. Imlay, Louisiana State University
R. A. Johnson, University of Cincinnati
G. Karagiorgi, Massachusetts Institute of Technology
T. Katori, Indiana University Bloomington
T. Kobilarcik, Fermi National Accelerator Laboratory
S. K. Linden, Yale University
W. C. Louis, Los Alamos National Laboratory
K. B.M. Mahn, Columbia University
W. Marsh, Fermi National Accelerator Laboratory
C. Mauger, Los Alamos National Laboratory
W. Metcalf, Louisiana State University
G. B. Mills, Los Alamos National Laboratory
J. Mirabal, Los Alamos National Laboratory
C. D. Moore, Fermi National Accelerator Laboratory
J. Mousseau, University of Florida
R. H. Nelson, University of Colorado Boulder
V. Nguyen, Massachusetts Institute of Technology
P. Nienaber, Saint Mary's University of Minnesota
J. A. Nowak, Louisiana State University

Document Type

Article

Publication Date

10-26-2011

Abstract

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 νμ- induced charged-current single π+ (CC1π+) sample while the second exploits the difference between the angular distributions of muons created in νμ and ν̄μ 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 CC1π+ analysis indicates the predicted νμ 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. © 2011 American Physical Society.

Publication Source (Journal or Book title)

Physical Review D - Particles, Fields, Gravitation and Cosmology

Recommended Citation

Aguilar-Arevalo, A., Anderson, C., Brice, S., Brown, B., Bugel, L., Conrad, J., Dharmapalan, R., Djurcic, Z., Fleming, B., Ford, R., Garcia, F., Garvey, G., Grange, J., Green, J., Imlay, R., Johnson, R., Karagiorgi, G., Katori, T., Kobilarcik, T., Linden, S., Louis, W., Mahn, K., Marsh, W., Mauger, C., Metcalf, W., Mills, G., Mirabal, J., Moore, C., Mousseau, J., Nelson, R., Nguyen, V., Nienaber, P., & Nowak, J. (2011). Measurement of the neutrino component of an antineutrino beam observed by a nonmagnetized detector. Physical Review D - Particles, Fields, Gravitation and Cosmology, 84 (7) https://doi.org/10.1103/PhysRevD.84.072005