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

N. Abgrall J. Dumarchez 1 M. Pavin 1 B. A. Popov 1 A. Robert 1 L. Zambelli 1 V. Galymov 2
1 LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies
2 IPNL - Institut de Physique Nucléaire de Lyon
Abstract : Measurements of particle emission from a replica of the T2K 90 cm-long carbon target were performed in the NA61/SHINE experiment at CERN SPS, using data collected during a high-statistics run in 2009. An efficient use of the long-target measurements for neutrino flux predictions in T2K requires dedicated reconstruction and analysis techniques. Fully-corrected differential yields of $\pi^\pm$-mesons from the surface of the T2K replica target for incoming 31 GeV/c protons are presented. A possible strategy to implement these results into the T2K neutrino beam predictions is discussed and the propagation of the uncertainties of these results to the final neutrino flux is performed.
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Contributor : Sylvie Flores <>
Submitted on : Thursday, April 7, 2016 - 9:14:24 AM
Last modification on : Friday, May 24, 2019 - 5:26:28 PM

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N. Abgrall, J. Dumarchez, M. Pavin, B. A. Popov, A. Robert, et al.. 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. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2016, 76, pp.617. ⟨10.1140/epjc/s10052-016-4440-y⟩. ⟨in2p3-01299022⟩

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