E362 weekly meeting 
At KEK R202, April 26(Fri), 15:00-17:00
Present:Chikamatsu,Sakai(INS),Ohyama,Sugaya,Sakuda(KEK),Nishijima(Tokai)

(1) All attendants like the weekly meeting starting at 15:00 every Tuesday. 
  -> In response to Nishikawa's request.
(2) On May 10 we will have the E362 collaboration meeting to welcome freshmen.
 Ohyama will prepare for the meeting. People from accelerator and beam-channel
 will join too. Party after the meeting.   
(3) Chikamatsu studies the effects of position resolutions (sigma_x=1.3mm,
 2.6mm and 5mm) of the muon chambers on the neutrino energy reconstruction.
   He also reports on the first meeting with Mitsui-shipbuilding Co. on the
  structure (April 25, Sakuda, Chikamatsu).
(4) Ohyama reports the analysis of the Super-K Monte Carlo events. (E362 memo)
 (a) Can quasi-elastic events be selected at Super-K?? 
  The result of the visual scanning is "yes". QE's can be selected with ~90%
  efficiency and the background contamination of ~30%. If pi-mu-e decays are
  used, the background may be reduced to 20% level. He will produce the figure 
  of the muon energy distribution for 200 events.  
 (b) Can NC events (nu_mu + p ->nu_mu + p, nu_mu + n ->nu_mu + n) be selected??
 He expects about 30 events for each reaction for 10**20 POT. They can be used
 for the beam normalization. 
(5) The work on the muon chambers at the Fuji hall is scheduled on May 20-21,
  9:00-17:00. Please help. 
  Sakuda will give a rehearsal talk "Front detector design" for the KEK 
 seminar on May 2, 15:00. KEK seminar is scheduled at 16:00-17:00 on May 7. 
//