On the Relation between the True Directions of Neutrinos and the   Reconstructed Directions of Neutrinos in L/E Analysis Performed by   Super-Kamiokande Collaboration Part1
  It should be regarded that the confirmation of the maximum oscillation in neutrino oscillation through L/E analysis by Super-Kamiokande is a logical consequence of their establishment on the existence of neutrino oscillation through the analysis of the zenith angle distribution for atmospheric neutrino events. In the present paper (Part1) with the computer numerical experiment, we examine the assumption made by Super-Kamiokande Collaboration that the direction of the incident neutrino is approximately the same as that of the produced lepton, which is the cornerstone in their L/E analysis, and we find this approximation does not hold even approximately. In a subsequent paper (Part2), we apply the results from Figures 16, 17, 18 and 19 to L/E analysis and conclude that one cannot obtain the maximum oscillation in L/E analysis in the single ring muon events due to quasi-elastic scattering reported by Super-Kamiokande which shows strongly the oscillation pattern from the neutrino oscillation. 
E.Konishi (1), Y.Minorikawa (2), V.I.Galkin (3), M.Ishiwata (4),   I.Nakamura (5), N.Takahashi (1), M.Kato (6) and A.Misaki ...
hep-ex