K2K Oct/2000 Official Plots

Fine-Grained Detector Group

• SciFi
• Fe events in Muon Range Detector

Analysis summary pages which describe the results:
ICHEP versions are shown. Will be updated when NEUT4.1 is processed.

• Data/MC Ratio
  This slide summarizes the Data/MC Ratio and expected number of events at Super-K.
  
• Systematic Error Summary
  This slide summarizes the systematic terms for both the FGD analysis and expected number of events at Super-K.
• Sci-Fi analysis summary information page
  This information page contains the systematic error terms, constants used in the calculations and POT, spills etc. The Data/MC ratio and number of expected events are all summarized here for the entire analysis period. You should be able to find all the numbers you might need from the analysis.

Sample event displays:

• Event examples in 2000 run:
  2 track
  
  • r2279.s18568/ side-top/ front
  • r2361.s1516/side-top/ front/
  • r2383.s18594/side-top /front/
  • r2409.s34505/side-top /front/
  • r2484.s16669/side-top /front/
  • r2521.s36891/side-top /front/
  single track r2234.s38405
  Front view (1999 June) /gif /ps/

SciFi official plots:

• Sci-Fi analysis plots. (ALL MUC-3D)
  
  Page 1: Neutrino vertex distribution
  Page 2: Muon momentum distribution for all tracks
  Page 3: Angle of muon wrt to beam
  
  
• Sci-Fi analysis plots - Multitrack. (All MUC-3D)
  In these plots the hatched region is QE.
  
  Page 1: Track multiplicity
  Page 2: Muon energy 1 track
  Page 3: Angle of muon wrt to beam 1 track
  Page 4: Muon Energy 2 track
  Page 5: Track Length of secondary track
  Page 6: Track Length of secondary track (delta theta < 20 deg)
  Page 7: Deviation of 2nd track from expected direction
  Page 8: Deviation of 2nd track from expected direction
  Page 9: Inelastic enhanced(theta>20deg) energy/angle
  
  
• Sci-Fi analysis plots - Neutrino Spectrum/Flux Measurement.
  In these plots the hatched region is QE.
  
  See this README file for more detailed information.

  Neut 4.0 Only	Neut 4.0/NUANCE
  data_mcNeut_comp	data_mc_comp	Neutrino energy dist.(assuming QE)
  data_mcNeut_bs_comp	data_mc_bs_comp	BG subtracted neutrino energy dist.(assuming QE). Angle cut on two track events.
  data_mcNeut_inel_comp	data_mc_inel_comp	Calculated QE neutrino spectrum in InEl sample. Used to confirm that BG shape is understood. Compared to inelastic spectrum.
  migration		Efficiency matrices for muc3d 1 and 2 track event samples
  specsys		List of systematic errors considered in the energy spectrum analysis

  
  Results of the spectrum analysis:
  
  

  Efficiency Corrected Measured Neutrino Energy Spectrum(CC QE).	Measured Neutrino Energy Flux(spec/xsec)
  enuspec_d	enuspec_d_nxsect	Data only
  enuspec_mc	enuspec_mc_nxsect	MC
  enuspec_d_mc	enuspec_d_mc_nxsect	Data and MC
  enuspec_d_pi	enuspec_d_pi_nxsect	Data and MC pion monitor flux predictions from pion measurements

Send comments and questions on these plots to walter@neutrino.kek.jp

• All the official plots are posted at here.

Send comments to www@neutrino.kek.jp