Number of dijets per triggered event - 2011 pp500

         The number of dijets (vs Invariant mass) per triggered event was calculated for the 2011 pp500 longitudinal data. The scaled and unscaled plots and for the number of triggers are attached. In the "Triggers" histogram, the first, second, third and fourth bins represent the JP0,JP1,JP2 and AJP triggers respectively. The histograms are over the complete data set (runs 12099029-12108020). The basic cuts given in are :

  1. -60< Zvertex <60
  2. pT(3) > 13GeV, pT(4) >10GeV
  3. eta(3) < 1, eta(4) < 1
  4. Deltaphi < 2