The time and the spatial distributions of the triggers

• The BXN distribution
• The beam profile in ME1/1
• The beam profile in ME1/2 (the shadow of ME1/1 is seen because the SP trigger requires a coincidence between any 2 chambers)
• The beam profile in ME2/2
• The beam profile in ME3/2
• The Phi profile
• The Eta profile
• The Delta Phi profile
• The Delta Eta profile
• This run was 515, and the trigger source was the SP. The plots nicely show that we are sensitive to the entire chamber area.
  The Delta Phi and Delta Eta distributions are between pairs of chambers. Phi is derived from the strip position, Eta from the wire group. See the neat effect of the 5th CFEB working on the 3:1 ganged strips of the ME1/1 chamber!