Measurements of π± , K± 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

Measurements of π± , K± 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

Measurements of the π±, K±, 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 π±...

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Hauptverfasser: Aduszkiewicz, A, Antičić, T, Baatar, B, Baszczyk, M, Bhosale, S, Bogomilov, M, Brandin, A, Bravar, A, Bryliński, W, Brzychczyk, J, Bzdak, A, Cherif, H, Czopowicz, T, Damyanova, A, Dominik, W, Dorosz, P, Dumarchez, J, Engel, R, Ereditato, A, Fields, L, Fodor, Z, Garibov, A, Gaździcki, M, Golubeva, M, Guber, F, Haesler, A, Hasegawa, T, Igolkin, SN, Ivashkin, A, Johnson, SR, Kadija, K, Kargin, N, Kiełbowicz, M, Klochkov, V, Kobayashi, T, Kolev, D, Korzenev, A, Kovalenko, VN, Kowalik, K, Kowalski, S, Krasnoperov, A, Kuich, M, Kurepin, A, Larsen, D, Łojek, K, Łysakowski, B, Maćkowiak-Pawłowska, M, Maksiak, B, Marchionni, A, Marcinek, A, Marton, K, Matveev, V, Melkumov, GL, Merzlaya, AO, Messerly, B, Mik, Ł, Mills, GB, Morozov, S, Mrówczyński, S, Nishikawa, K, Ozvenchuk, V, Pavin, M, Płaneta, R, Podlaski, P, Popov, BA, Posiadała-Zezula, M, Prokhorova, DS, Pulawski, S, Rauch, W, Richter-Wa̧s, E, Røhrich, Dieter, Rondio, E, Rumberger, BT, Sakashita, K, Sekiguchi, T, Selyuzhenkov, I, Seryakov, A Yu, Shibata, M, Snoch, A, Stefanek, G, Stepaniak, J, Strikhanov, M, Taranenko, A, Tefelska, A, Tereshchenko, V, Toia, A, Ulrich, R, Unger, M, Veberič, D, Vechernin, VV, Walewski, M, Wickremasinghe, A, Włodarczyk, Z, Zambelli, L, Zwaska, R, Berns, L, Fiorentini, GA, Hartz, M, Vladisavljevic, T, Yu, M
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Zusammenfassung:Measurements of the π±, K±, 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 π± yields were measured with increased precision compared to the previously published NA61/SHINE results, while the K± 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.