The E835 Charged trigger


The E835 charged trigger has been studied to select e+e- events (inclusive and exclusive), phi-phi and elastic pbar-p events. The single logics, based on the H2 hodoscope and on the Scintillating Fiber Detector, are combined using three Memory Look Up modules (MLU). The C_MLU combines the logics based on H2, the P_MLU combines, basically, the logics based on the SCI-FI bundles. The outputs of the C/P_MLU are, in turns, combined in the M_MLU to give the final triggers.
Last update: 04/19/00


Inputs-Outputs of the MLUs for the E835 run I

  • Master MLU
  • Charged MLU
  • Phi-phi MLU

  • History of the charged trigger for the E835 run I

  • e+e-
  • ppbar-signal
  • phiphi
  • ppbar-control


  • Inputs-Outputs of the MLUs for the E835 run II

  • Master MLU
  • Charged MLU
  • Phi-phi MLU

  • History of the charged trigger for the E835 run II

  • e+e-
  • ppbar(90deg)
  • phiphi
  • ppbar control

  • Hardware trigger efficiency for stack07-stack33

  • e+e- trigger hardware efficiency
  • phiphi trigger hardware efficiency
  • CMLU1 hardware efficiency
  • CMLU2 hardware efficiency