Measurements of ${\pi }^{\pm }$, $K^{\pm }$ and proton yields from the surface of the T2K replica target for incoming 31 GeV/c protons with the NA61/SHINE spectrometer at the CERN SPS

Abstract

Measurements of the ${\pi }^{\pm }$, $K^{\pm }$, and proton double differential yields emitted from the surface of the 90-cm-long carbon target (T2K replica) were performed for the incoming 31 GeV/c protons with the NA61/SHINE spectrometer at the CERN SPS using data collected during 2010 run. The double differential ${\pi }^{\pm }$ yields were measured with increased precision compared to the previously published NA61/SHINE results, while the $K^{\pm }$ and proton yields were obtained for the first time. A strategy for dealing with the dependence of the results on the incoming proton beam profile is proposed. The purpose of these measurements is to reduce significantly the (anti)neutrino flux uncertainty in the T2K long-baseline neutrino experiment by constraining the production of (anti)neutrino ancestors coming from the T2K target.

43 pages, 55 figures

References in corpus (5)

• Measurements of neutrino oscillation in appearance and disappearance channels by the T2K experiment with 6.6E20 protons on target
• The T2K Neutrino Flux Prediction
• Measurements of ${\pi }^{\pm }$, $K^{\pm }$, $K_S^0$, $\Lambda$ and proton production in proton-carbon interactions at 31 GeV/$c$ with the NA61/SHINE spectrometer at the CERN SPS
• Pion emission from the T2K replica target: method, results and application
• Measurements of ${\pi }^{\pm }$ differential yields from the surface of the T2K replica target for incoming 31 GeV/c protons with the NA61/SHINE spectrometer at the CERN SPS

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• First combined measurement of the muon neutrino and antineutrino charged-current cross section without pions in the final state at T2K
• Measurement of neutrino and antineutrino neutral-current quasielastic-like interactions on oxygen by detecting nuclear de-excitation $\gamma$-rays
• First T2K measurement of transverse kinematic imbalance in the muon-neutrino charged-current single-${\pi }^{+}$ production channel containing at least one proton
• 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
• Measurements of production and inelastic cross sections for $\mbox{p}+\mbox{C}$, $\mbox{p}+\mbox{Be}$, and $\mbox{p}+\mbox{Al}$ at 60 GeV/$c$ and $\mbox{p}+\mbox{C}$ and $\mbox{p}+\mbox{Be}$ at 120 GeV/$c$
• History of accelerator neutrino beams
• A measurement of proton-carbon forward scattering in a proof-of-principle test of the EMPHATIC spectrometer
• A substandard candle: the low-$\nu$ method at few-GeV neutrino energies
• Measurement of the production cross section of 31 GeV/$c$ protons on carbon via beam attenuation in a 90-cm-long target
• Measurements of hadron production in 90 GeV/c proton-carbon interactions
• Multiparticle production and initial quasi-temperature from proton induced carbon collisions at $p_{Lab}=31$ GeV/$c$
• Results from the T2K experiment on neutrino mixing including a new far detector $\mu$-like sample
• 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
• First Measurement of the Electron Neutrino Charged-Current Pion Production Cross Section on Carbon with the T2K Near Detector
• Hadron Production Measurements for Long-Baseline Neutrino Experiments with NA61/SHINE