K2KOFFICIAL: Standard

Issues

• Overview of the experiment (Ishida)
  (b/w)/eps/ source xfig file/
  (colour) /jpg/ Mac Canvas/ Mac Pict/ (Ishida)
  
• FD schematics(Ishida)
  (b/w)/eps/ source Xfig files/
  (colour)/jpg/ jpg-big/ Mac Canvas/ Mac Pict/ Mac Pict Small/
  
• 1kt water Cherenkov detector (Mine)
  
  • water system
  • MC tune
  • energy calibration
  • partcile identification
• LG/VETO Standard Plots
• Expected K2K Sensitivity contour (Ishida)
  
  • Numu-Nux /ps/ eps)/
  • Numu-Nue /ps/ eps)
  with 700 days SK allowed region,
  taking 470-neutrino interactions in 22.46kt fiducial volume (dwall >=2m)
  and 10% systematic for overall normalization of flux in SK into accounts.
  See k2knote/OFL/MC
  
• Expected Numu Spectrum in case of dm2=5.e-3, sin2-2th=1. /ps/ (Ishida)
  
• allowed region (Itow)
  • allowed region numu-nutau, dm2=0.01, sin2=1.
  • allowed region numu-nutau, dm2=0.05, sin2=1.
  • allowed region numu-nutau, dm2=0.0035, sin2=1.
  • allowed region numu-nutau, dm2=0.002, sin2=1.
• SK newest allowed region plot (800days) (Kaneyuki)
  
  • FC+PC
  • FC+PC+up-mu
• MC study with CHO-CERN model (Yoshida)
  210 neutrino interactions (88 1-ring mu-like FC events) /10**20pot
  in SK 22.5kt fiducial volume
  after normalization by FD (Data/MC=0.842).
  
  • reconstructed neutrino spectrum
    22.5kt, FC, 1ring, mulike, muon momentum.gt.200MeV/c
    
  • reconstructed neutrino spectrum for each interaction mode (area)
    22.5kt, FC, 1ring, mulike, muon momentum.gt.200MeV/c
    
  • reconstructed neutrino spectrum for each interaction mode (line)
    22.5kt, FC, 1ring, mulike, muon momentum.gt.200MeV/c
    
  • reconstructed neutrino spectrum distortion
    22.5kt, FC, 1ring, mulike, muon momentum.gt.200MeV/c
    
  • survival probability
    Baseline=250km
    
  • K2K sensitivity
    reconstracted Enu .gt. 500MeV
    reconstracted Enu .gt. 500MeV (with Kam, SK990day results)
    reconstracted Enu .gt. 500MeV (90%CL K2K with Kam, SK1144day, Soudan2, MACRO)
    K2K 90%CL sensitivity contour (RED LINE), Kam(BLUE LINE), SK1144day(PURPLE LINE), Soudan2(GREEN LINE), MACRO(BROWN LINE))
    reconstracted Enu .gt. 500MeV (90%CL+99%CL K2K with Kam, SK1144day, Soudan2, MACRO)
    K2K 90%CL/99%CL sensitivity contour (RED SOLID/DASHED LINE), Kam(BLUE LINE), SK1144day(PURPLE LINE), Soudan2(GREEN LINE), MACRO(BROWN LINE))
    reconstracted Enu .gt. 1GeV
    
  • Expected allowed region
    reconstracted Enu .gt. 500MeV
    reconstracted Enu .gt. 1GeV
    

• Pretty SK event displays:
  • Single-ring muon event candidate pointing nicely back to KEK (thanx to C. Walter)