The T2K Neutrino Flux Prediction

Abstract

The Tokai-to-Kamioka (T2K) experiment studies neutrino oscillations using an off-axis muon neutrino beam with a peak energy of about 0.6 GeV that originates at the J-PARC accelerator facility. Interactions of the neutrinos are observed at near detectors placed at 280 m from the production target and at the far detector -- Super-Kamiokande (SK) -- located 295 km away. The flux prediction is an essential part of the successful prediction of neutrino interaction rates at the T2K detectors and is an important input to T2K neutrino oscillation and cross section measurements. A FLUKA and GEANT3 based simulation models the physical processes involved in the neutrino production, from the interaction of primary beam protons in the T2K target, to the decay of hadrons and muons that produce neutrinos. The simulation uses proton beam monitor measurements as inputs. The modeling of hadronic interactions is re-weighted using thin target hadron production data, including recent charged pion and kaon measurements from the NA61/SHINE experiment. For the first T2K analyses the uncertainties on the flux prediction are evaluated to be below 15% near the flux peak. The uncertainty on the ratio of the flux predictions at the far and near detectors is less than 2% near the flux peak.

36 pages

References in corpus (4)

• Indication of Electron Neutrino Appearance from an Accelerator-produced Off-axis Muon Neutrino Beam
• Measurement of Neutrino Oscillation by the K2K Experiment
• Pion emission from the T2K replica target: method, results and application
• Design and performance of the muon monitor for the T2K neutrino oscillation experiment

Cited by in corpus (53)

• Measurements of neutrino oscillation in appearance and disappearance channels by the T2K experiment with 6.6E20 protons on target
• Physics Potential of a Long Baseline Neutrino Oscillation Experiment Using J-PARC Neutrino Beam and Hyper-Kamiokande
• Measurement of neutrino and antineutrino oscillations by the T2K experiment including a new additional sample of ${\nu }_e$ interactions at the far detector
• Measurements of neutrino oscillation parameters from the T2K experiment using $3.6\times 10^{21}$ protons on target
• Explaining $(g-2{)}_{\mu ,e}$, the KOTO anomaly and the MiniBooNE excess in an extended Higgs model with sterile neutrinos
• Imprints of CP violation induced by sterile neutrinos in T2K data
• Neutrino Oscillation Physics Potential of the T2K Experiment
• Measurement of the Inclusive Electron Neutrino Charged Current Cross Section on Carbon with the T2K Near Detector
• Status of Lattice QCD Determination of Nucleon Form Factors and their Relevance for the Few-GeV Neutrino Program
• Measurement of the inclusive ${\nu }_{\mu }$ charged current cross section on iron and hydrocarbon in the T2K on-axis neutrino beam
• Heavy neutral leptons below the kaon mass at hodoscopic detectors
• Measurement of the ${\nu }_{\mu }$ charged current quasi-elastic cross-section on carbon with the T2K on-axis neutrino beam
• Search for light sterile neutrinos with the T2K far detector Super-Kamiokande at a baseline of 295 km
• Measurement of the intrinsic electron neutrino component in the T2K neutrino beam with the ND280 detector
• Measurements of the Inclusive Neutrino and Antineutrino Charged Current Cross Sections in MINERvA Using the Low-$\nu$ Flux Method
• Inclusive and pion production neutrino-nucleus cross sections
• Measurement of neutrino and antineutrino neutral-current quasielastic-like interactions on oxygen by detecting nuclear de-excitation $\gamma$-rays
• Design and diagnostics of high-precision accelerator neutrino beams
• Joint short- and long-baseline constraints on light sterile neutrinos
• Recent Advances and Open Questions in Neutrino-induced Quasi-elastic Scattering and Single Photon Production
• A realistic spectral function model for charged-current quasielastic-like neutrino and antineutrino cross sections on ${}^{12}$C
• Search for neutral-current induced single photon production at the ND280 near detector in T2K
• Three-flavour oscillations with accelerator neutrino beams
• Joint neutrino oscillation analysis from the T2K and NOvA experiments
• Sensitivity of the Upgraded T2K Near Detector to constrain neutrino and anti-neutrino interactions with no mesons in the final state by exploiting nucleon-lepton correlations
• Neutrino versus antineutrino cross sections and CP violation
• Search for short baseline ${\nu }_e$ disappearance with the T2K near detector
• Accuracy of the lepton-nucleus scattering models in the quasielastic region
• First measurement of muon neutrino charged-current interactions on hydrocarbon without pions in the final state using multiple detectors with correlated energy spectra at T2K
• Implementation of the CRPA model in the GENIE event generator and analysis of nuclear effects in low-energy transfer neutrino-nucleus interactions
• Measurement of the Electron Neutrino Charged-current Interaction Rate on Water with the T2K ND280 pi-zero Detector
• The Relativistic Green's function model and charged-current inclusive neutrino-nucleus scattering at T2K kinematics
• Expanding neutrino oscillation parameter measurements in NOvA using a Bayesian approach
• Comparisons and challenges of modern neutrino-scattering experiments (TENSIONS 2019 report)
• Polarization Transfer in Weak Pion Production off the Nucleon
• First measurement using a nuclear emulsion detector of the ${\nu }_{\mu }$ charged-current cross section on iron around the 1GeV energy region
• Measuring tau neutrino appearance probability via unitarity
• Measurement of ${\bar{\nu }}_{\mu }$ and ${\nu }_{\mu }$ charged current inclusive cross sections and their ratio with the T2K off-axis near detector
• Benchmarking neutrino interaction models via a comparative analysis of kinematic imbalance measurements from the T2K, MicroBooNE and MINERvA experiments
• Spin asymmetry in single pion production induced by weak interactions of neutrinos with polarized nucleons
• A substandard candle: the low-$\nu$ method at few-GeV neutrino energies
• Measurements of the ${\nu }_{\mu }$ and ${\bar{\nu }}_{\mu }$-induced Coherent Charged Pion Production Cross Sections on ${}^{12}C$ by the T2K experiment
• Precision measurement of neutrino oscillation parameters with 10 years of data from the NOvA experiment
• Measurements of protons and charged pions emitted from ${\nu }_{\mu }$ charged-current interactions on iron at a mean neutrino energy of 1.49GeV using a nuclear emulsion detector
• Longitudinal kinematic imbalances in neutrino and antineutrino interactions for improved measurements of neutrino energy and the axial vector form factor
• Design and performance of a scintillation tracker for track matching in nuclear-emulsion-based neutrino interaction measurement
• Charged Current Quasi-Elastic Cross Section Measurements in MiniBooNE
• Exploring the nature of neutrinos in a dissipative environment
• Measurement of muon neutrino induced charged current interactions without charged pions in the final state using a new T2K off-axis near detector WAGASCI-BabyMIND
• Improving Neutrino-Nuclei Interaction Models: Recommendations and Case Studies on Peelle's Pertinent Puzzle
• First Measurement of the Electron Neutrino Charged-Current Pion Production Cross Section on Carbon with the T2K Near Detector
• Extraterrestrial artificial particle sources. Application to neutrino physics and cosmic rays studies
• Neutrino On The Possible New Time Structure