Date: 13:30-16:00, May 16, 1995
Place: ICRR
Present: Nishikawa (INS, Chairman), Nakahata, Sakai, Koshio (ICRR),
         Hasegawa (Tohoku), Kaneyuki (Tokyo Tech), Ohyama, Sakuda (KEK),
         Suzuki (Kobe), Satou, Tezuka (Utsunomiya), J. Stone, Chikamatsu.
         
(1) Nishikawa explained the motivation of the meeting.
  Front Detector design, either a water tank or fine grain detector, need
 the simulation. E362 group wants to set up a program on the work station,
 since HITAC will expire within this year. Super-Kamioka group has developed
 a neutrino simulation program on the work station too, which originated 
from Nakahata version  (J.Phys.Soc.55, 3786(1986)). It is important that
everyone will use and develop a common simulation program. 
 TIT group (Kaneyuki et al) also developed the reconstruction program 
for 1-ring events. 

(2) Nakahata explained the lines along which the Super-Kamioka offline will
 proceed. They will set up the offline on the work stations. The program
 which consists of the neutrino event generator and GEANT, is available
on the work station.  Then, he gave us an instructive lecture (1 hour) on 
the neutrino event generator and the several updates. 
 References: 
(a) T. Kajita,"Modification of the Monte Carlo Program for the atmospheric 
 neutrino interactions", Kamioka note No.75, June 28, 1989.
 ->  Change of the axial vector mass from 0.95 to 1.01 GeV.
   A new calculation of atm neutrino flux after taking into account the muon
    polarization. etc..
(b) Kaneyuki, Hayato and Nakahata, "Neutrino single pion production for Super 
 Kamiokande", Kamioka note No.108, April 18, 1994.
 -> Old version used Fogli and Nardulli. A new version uses Rein&Sehgal, 
   which takes into account the angular distribution of Delta->N+pi. 
  The calculation of Pi-absorption effects in the nucleus is updated too. 

(3) Kaneyuki showed us whereabouts of the parameters in the neutrino event
 generator, such as axial vector mass, Fermi motion etc. 

(4) Nishikawa concluded the E362 meeting.
 (*) Ohyama will copy the available program to the KEK work stations.
   He will study the neutrino interaction at Front-Water-tank or Super-Kamioka
  for E362 experiment (CC/NC ratio, pi0 reconstruction).
 (*) Sakuda will study the design of the front fine-grain detector. 
(Memo by Sakuda)