Slide 2                      S.Olsen 
                                                    PICTEL    5/10/96

       
               psi' and J/psi -->omega pi+pi-; omega f_2

    SELECTION:
 	
             J/psi                                psi'
-------------------------------------------------------------------
6 tracks                                       4 tracks
  Sum(q_i) = 0                                    Sum(q_i) = 0
  .ge. 2 gammas                                   .ge. 2 gammas
  |cos\theta|<0.8                                 |cos\theta|<0.8

6C fit to:                                      5C fit to:
  psi'-->pi+pi-J/psi                              psi'-->pi+pi-pi+pi-pi0
                 |                                                    |
                pi+pi-pi+pi-pi0                                  gamma gamma
                             |
                         gamma gamma

                                                 Veto events with a pi+pi-pi0
                                                 mass combination within 50 MeV
                                                 of the J/psi
               ---------Write Ntuple------------
Chi^2(6C) < 20                                   Chi^2(5C)<15
M_2gamma^{prefit} < 0.4 GeV                      M_2gamma^{prefit} < 0.4 GeV
                                                 M(pi+pi-) < 2.9 GeV
                                                 M_{miss}^{pi0} < 3.35 GeV

Fig 1a  M(pi+pi-pi0)                             Fig 2a  M(pi+pi-pi0) 
        from J/psi->2(pi+pi-)pi0                 from psi'->2(pi+pi-)pi0     
        (4 entries/event)                        (4 entries/event)

Fig 1b  M(pi+pi-) recoiling                      Fig 2b  M(pi+pi-) recoiling 
        from an omega                                    from an omega

Fig 1c  M(pi+pi-pi0)  vs                         Fig 2c  M(pi+pi-pi0) vs
          M(pi+pi-)                                       M(pi+pi-) 

Fig 1d  M(pi+pi-pi0)  vs                         Fig 2d  M(pi+pi-pi0) vs
          M(pi+pi-)                                       M(pi+pi-) 
        (Lego plot)                                      (Lego plot)