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Phys Rev Lett. 2009 May 29;102(21):211801. doi: 10.1103/PhysRevLett.102.211801. Epub 2009 May 28.

Measurement of numicro and nue events in an off-axis horn-focused neutrino beam.

Physical review letters

P Adamson, A A Aguilar-Arevalo, C E Anderson, A O Bazarko, M Bishai, S J Brice, B C Brown, L Bugel, J Cao, B C Choudhary, L Coney, J M Conrad, D C Cox, A Curioni, Z Djurcic, D A Finley, B T Fleming, R Ford, H R Gallagher, F G Garcia, G T Garvey, C Green, J A Green, D Harris, T L Hart, E Hawker, J Hylen, R Imlay, R A Johnson, G Karagiorgi, P Kasper, T Katori, T Kobilarcik, S Kopp, I Kourbanis, S Koutsoliotas, E M Laird, S K Linden, J M Link, Y Liu, Y Liu, L Loiacono, W C Louis, A Marchionni, K B M Mahn, W Marsh, G McGregor, M D Messier, W Metcalf, P D Meyers, F Mills, G B Mills, J Monroe, C D Moore, J K Nelson, R H Nelson, V T Nguyen, P Nienaber, J A Nowak, S Ouedraogo, R B Patterson, Z Pavlovic, D Perevalov, C C Polly, E Prebys, J L Raaf, H Ray, B P Roe, A D Russell, V Sandberg, R Schirato, D Schmitz, M H Shaevitz, F C Shoemaker, W Smart, D Smith, M Sodeberg, M Sorel, P Spentzouris, I Stancu, R J Stefanski, M Sung, H A Tanaka, R Tayloe, M Tzanov, P Vahle, R Van de Water, B Viren, M O Wascko, D H White, M J Wilking, H J Yang, F X Yumiceva, G P Zeller, E D Zimmerman, R Zwaska

Affiliations

  1. Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA.

PMID: 19519094 DOI: 10.1103/PhysRevLett.102.211801

Abstract

We report the first observation of off-axis neutrino interactions in the MiniBooNE detector from the NuMI beam line at Fermilab. The MiniBooNE detector is located 745 m from the NuMI production target, at 110 mrad angle (6.3 degrees) with respect to the NuMI beam axis. Samples of charged-current quasielastic numicro and nue interactions are analyzed and found to be in agreement with expectation. This provides a direct verification of the expected pion and kaon contributions to the neutrino flux and validates the modeling of the NuMI off-axis beam.

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