---------------------------------------------------
            This is the description of official on-site ntuple.
            ---------------------------------------------------


(NOTICE) 

  1. dir,dirv,dirv2,dirnu may be incorrect with PAW version 95a.
     Use PAW version 97a 
     ^^^^^^^^^^^^^^^^^^^
  2. Use amome,amomm for momentum, not to use amom.



(VARIABLES DESCRIPTION)  ( <> shows block name )


<DST>

nring          :  number of ring          (apnring)
nrun           :  run number              (nrunsk)
nev            :  event number            (nevsk)
nsub           :  subrun number           (nsubsk)
cate           :  scan category           (apidcate)
potot          :  ID total p.e            (qismsk)
nhit           :  ID number of hit PMT    (nqisk)
pomax          :  ID max p.e.             (qimxsk)
potota         :  OD total p.e.           (qasmsk)
nhita          :  OD number of hit PMT    (nqask)
nhitac         :  OD timecut hit in cluster 
pomaxa         :  OD max p.e.             (qamxsk)
wall           :  distance to nearest wall from vertex (cm)
evis           :  visible energy  (MeV/c)
               :  This is the sum of amome of each rings
rtsum          :  sum of RTOT (corrected p.e.)
rtmax          :  max of RTOT (corrected p.e.)
wlen           :  water transparency length (cm)
ip(nring)      :  particle type by PID (1:gamma 2:electron 3:muon)
pos(3)         :  fitted vertex             (appos)
dir(3,nring)   :  fitted direction          (apdir)
dirtot(3)      :  total direction sum ( each ring are weighted by RTOT )
ang(nring)     :  opening angle (degree)    (apangcer)
rtot(nring)    :  corrected p.e.            (aprtot)
amom(nring)    :  momentum  (MeV/c)         (apamom)
rtote(nring)   :  corrected p.e. as e-like  (apmsrtot(2,nring))
amome(nring)   :  momentum  as e-like       (apmsamom(2,nring))
rtotm(nring)   :  corrected p.e. as mu-like (apmsrtot(3,nring))
amomm(nring)   :  momentum  as mu-like      (apmsamom(3,nring))
nsube          :  number of sub event
ndcy           :  number of decay electron of sub event type
ngate          :  number of decay electron of gate-in type
nbye           :  number of decay electron of bye-bye type
probms(6,nring):  probability of PID include opening angle  (approb(6,nring))
               :  ex.  e-like   probms(2,1)>probms(3,1)  
               :  ex.  mu-like  probms(2,1)<probms(3,1)  
prmslg(6,nring):  probability of PID without opening angle (apprmslg(6,nring))
date(3)        :  event date (JST)  date(1):year date(2):month  date(3):day   
time(4)        :  event time (JST)  time(1):hour time(2):minute time(3):second
elpsday        :  elapsed days from 1-Apr-1996 
apos(3)        :  vertex    of AUTO FIT
adir(3)        :  direction of AUTO FIT
aang           :  angle     of AUTO FIT
agood          :  goodness  of AUTO FIT
dlfct          :  likelihood of ring counting to 2nd ring candidate
               :  ex.  1-ring       dlfct<0
               :  ex.  multi-ring   dlfct>0
               :  ring correction is additionally applied to multi-ring event

<DST2>

amomp          :  Reconstructed momentum assuming particle is 
                  charged pion 
ange,angm,angp :  Opening angle assuming particle is e,mu,pi 
ntot           :  Effective # of PMTs in the ring
probth         :  PID Likelihood using opening angle information


<EVIS>

evisold        : same as evis                           (apmsrtot(5,1))
evisnew        : visible energy, independent of particle direction 
               :                                        (apmsamom(5,1))


<POLFIT>  (2-ring pi0 specified fit, ipi= 1:WIDE_FIT 2:FORWARD_FIT)

pi0like(ipi)      : likelihood of pi0 specified fit
pi0_e(nr,ipi)     : energy of nr-th e-like ring (nr is always 2)
pi0_dir(n3,r,ipi) : fitted direction of nr-th e-like ring
pi0mass(ipi)      : reconstructed pi0 mass by ipi= 1:WIDE_FIT 2:FORWARD_FIT


<MUE>  ( mu-e decay , for detail see "apmue.h" )  

nmue           :  number of mu-e decay
etype(nmue)    :  mu-e decay type
etime(nmue)    :  time of decay 
epos(3,nmue)   :  vertex 
edir(3,nmue)   :  direction
egood(nmue)    :  goodness
ehit(nmue)     :  number of hit


<OSC>  (neutrino oscillation)

oscwgt         :  neutrino oscillation probability
               :  with delta_m^2=2.5*10^-3 and sin^2(2*theta)=1.0


<VECT> ( vector list at detector simulation )

npar           :  number of particle of Vector
wallv          :  distance to nearest wall from Vector vertex
ipv(npar)      :  Vector particle code (Geant code)
posv(3)        :  Vector vertex   
dirv(3,npar)   :  Vector direction 
pmomv(npar)    :  Vector momentum
npar2          :  number of secondary paticle


<VECT2> ( vector list of secondaries at detector simulation )

wallv2(npar2)  :  distance to nearest wall of secondary vertex
ipv2(npar2)    :  particle code of secondaries   (Geant code)
iorg(npar2)    :  origin of secondary
posv2(3,npar2) :  Vector vertex of secondary
dirv2(3,npar2) :  Vector direction of secondary
pmomv2(npar2)  :  Vector momentum of secondary


<NEWORK> ( vector list at neutrino interaction )

numnu          :  number of particle at neutrino interaction
               :  numnu=1    incoming neutrino
               :        2    target
               :        3    outgoing lepton
               :        4    outgoing target
               :      >=5    other particles
mode           :  interaction mode of neutrino, see neut/nemodsel.F
               :  +-1        CC quasi-elastic
               :  +-(11-13)  CC single pi from delta resonance
               :  +-16       CC coherent pi production
               :  +-21       CC multi pi production
               :  +-27       CC diffractive pion production
               :  +-(31-34)  NC single pi from delta resonance
               :  +-36       NC coherent pi 
               :  +-41       NC multi pi production
               :  +-47       NC diffractive pion production
               :  +-(51,52)  NC elastic
ipnu(numnu)    :  particle code at neutrino interaction (P.D.G. code)
               :  ipnu(1)==12 nu-e    ipnu(1)==-12 nu-e-bar
               :  ipnu(1)==14 nu-mu   ipnu(1)==-14 nu-mu-bar
               :  ipnu(1)==16 nu-tau  ipnu(1)==-16 nu-tau-bar
pnu(numnu)     :  momentum at neutrino interaction (GeV/c)
dirnu(3,numnu) :  direction at neutrino interaction


<FLUX>  (neutrino flux)

flxh(isol)     :  Honda 2001 flux
               :  isol= 1:solar minimum, 2:solar middle, 3:solar max
flxh1d(isol)   :  Honda 1995 flux
flxf(isol)     :  Fluka flux
flxg(isol)     :  Gaisser flux


<LIVETIME> 

live 	       :  livetime


<SOLARACT>

sacth 	       :  solar activity weight for Honda-flux
               :  ex. //fcmc/1.nring sacth
sactg          :  solar activity weight for Bartol-flux
               :  ex. //fcmc/1.nring (flxg(1)/flxh(1))*sactg 


<OSC3D>

dirtotepi(3)   : event direction reconstructed from e/pi momentum.
dirtotmue(3)   : event direction reconstructed from e/mu momentum.
dirsum(3)      : event direction reconstructed from PMT direction.
etot           : event energy reconstructed from electron momentum.
etotepi        : event energy reconstructed from e/pi momentum.
etotmue        : event energy reconstructed from e/mu momentum.
oscweight(4,2) : event weights in case of 3-flavor oscillation. 



(EXAMPLES)


1. fully-contained SUB-GEV cut

     e-like  : nring==1&&nhitac<10&&evis<1330&&wall>200&&ip(1)=2&&100<amome(1)
     mu-like : nring==1&&nhitac<10&&evis<1330&&wall>200&&ip(1)=3&&200<amomm(1)
   
2. fully-contained MULTI-GEV cut

     e-like  : nring==1&&nhitac<10&&evis>1330&&wall>200&&ip(1)=2
     mu-like : nring==1&&nhitac<10&&evis>1330&&wall>200&&ip(1)=3

3. patially-contained cut

               nhitac>=10&&potot>3000&&wall>200