Measurements of [Formula omitted], [Formula omitted] and proton double 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

• Published in: The European physical journal. C, Particles and fields Vol. 79; no. 2; pp. 1 - 45
• Main Authors: Abgrall, N, Aduszkiewicz, A, Andronov, E. V, Anticic, T, Baatar, B, Baszczyk, M, Bhosale, S
• Format: Journal Article
• Language: English
• Published: Heidelberg Springer 31-01-2019; Springer Nature B.V
• Subjects: CERN; Comparative analysis; Dependence; Experiments; Measurement; Neutrinos; Particle physics; Proton beams; Protons; Synchrotrons
• ISSN: 1434-6044; 1434-6052
• DOI: 10.1140/epjc/s10052-019-6583-0

Measurements of the [Formula omitted], [Formula omitted], and proton double differential yields emitted from the surface of the 90- [Formula omitted]-long carbon target (T2K replica) were performed for the incoming [Formula omitted] [Formula omitted] protons with the NA61/SHINE spectrometer at the CERN SPS using data collected during 2010 run. The double differential [Formula omitted] yields were measured with increased precision compared to the previously published NA61/SHINE results, while the [Formula omitted] 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.