Measurement of the neutrino component of an anti-neutrino beam observed by a non-magnetized detector

Aguilar-Arevalo, A.A. and Nowak, Jaroslaw (2011) Measurement of the neutrino component of an anti-neutrino beam observed by a non-magnetized detector. Physical Review D – Particles and Fields, 84 (7). ISSN 1550-2368

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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 ν̅ μ 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.

Item Type: Journal Article
Journal or Publication Title: Physical Review D – Particles and Fields
Additional Information: © 2011 American Physical Society
Departments: Faculty of Science and Technology > Physics
ID Code: 66779
Deposited By: ep_importer_pure
Deposited On: 26 Sep 2013 10:57
Refereed?: Yes
Published?: Published
Last Modified: 22 Feb 2020 02:18
URI: https://eprints.lancs.ac.uk/id/eprint/66779

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