MissingET Revertexing

Plots of the Revertexed MET
in postscript format, from a QCD -> b+bbar sample.

  • MissingET of this QCD -> b+bbar sample
    MissingET of the sample, calculated about the event vertex.

  • Summed ring energies of this QCD -> b+bbar sample
    Ring energies for this sample, summed for each event.

  • Z vertex for this QCD -> b+bbar sample
    Event vertex for this sample, in cm. along the Z axis.

  • Revertexed MissingET of this QCD -> b+bbar sample
    Revertexed missingET of the sample. Electromagnetic and Hadronic energies separate. Revertexed using the average EM heights and the average HAD heights.

  • MissingET and summed ring energies
    MissingET (black) superimposed on the unvertexed ring energies (purple).

  • MET and revertexed MET
    Event MET (black) superimposed on the revertexed MET (green). Electromagnetic and Hadronic energies separate. Revertexed using the average EM heights and the average HAD heights.

  • MET minus revertexed MET, normalized by MET
    Electromagnetic and Hadronic energies separate. Revertexed using the average EM height and the average HAD height. Calorimeter energies were combined in pairs before revertexing. The revertexed MET using separate rings is superimposed in green on the plot.

  • MET minus revertexed MET, normalized by MET
    Electromagnetic and Hadronic energies separate. Revertexed using the average EM height and the average HAD height. Calorimeter energies were combined in groups of three before revertexing. The revertexed MET using separate rings is superimposed in green on the plot.

  • MET minus revertexed MET, normalized by MET
    Electromagnetic and Hadronic energies separate. Revertexed using the average EM height and the average HAD height. Calorimeter energies were combined in groups of five before revertexing. The revertexed MET using separate rings is superimposed in green on the plot.

  • MET minus revertexed MET, normalized by MET
    Electromagnetic and Hadronic energies separate. Revertexed using the average EM height and the average HAD height. Calorimeter energies were combined in groups of ten before revertexing. The revertexed MET using separate rings is superimposed in green on the plot.

  • MET - ring energy, versus MET
    A scatter plot of the difference between MissingET and summed ring energies, versus the MissingET.

  • MET - revertexed MET, versus MET
    A scatter plot of the difference between MissingET and revertexed MET, versus the MissingET.

  • (MET - ring energy)/MET, versus MET
    A scatter plot of the difference between MissingET and summed ring energies, normalized by the MET, versus the MissingET.

  • (MET - revertexed MET)/MET, versus MET
    A scatter plot of the difference between MissingET and revertexed MET, normalized by the MET, versus the MissingET.

  • Profile plot of MET - revertexed MET, versus MET
    A profile histogram of the difference between MissingET and revertexed MET, normalized by the MET, versus the MissingET.

  • Profile plot of (MET - revertexed MET)/MET, versus MET
    A profile histogram of the difference between MissingET and revertexed MET, versus the MissingET.


    • Summary of distributions: 
        Distribution				mean		RMS
    ------------				----		----

    Missing ET					16.98		12.9


    Summed ring energies			18.05		13.37


    Revertexed Missing ET,			17.02		12.96
       using average EM heights, 
	 and average HAD heights

    Revertexed Missing ET,			16.99		12.88
      ring energies combined in pairs
 
    Revertexed Missing ET,			17		12.9
      ring energies combined in groups of three

    Revertexed Missing ET,			16.99		12.89
      ring energies combined in groups of five

    Revertexed Missing ET,			17.11		12.99
      ring energies combined in groups of ten

 =====================================================================

    Normalized Distributions			mean	        RMS
    ------------------------			----	        ---


    Missing ET - ring energies
    --------------------------		       -0.09578       0.4754
	   Missing ET



    Missing ET - revertexed MET
    ---------------------------		       -0.01006       0.1404
	   Missing ET
    (using average EM heights, 
       and average HAD heights)
 

    Missing ET - revertexed MET
    ---------------------------		       -0.01044       0.1415
	   Missing ET
    (ring energies combined in pairs)
 

    Missing ET - revertexed MET
    ---------------------------		       -0.01047       0.1491
	   Missing ET
    (ring energies combined in groups of three)


    Missing ET - revertexed MET
    ---------------------------		       -0.01606       0.1741
	   Missing ET
    (ring energies combined in groups of five)


    Missing ET - revertexed MET
    ---------------------------		       -0.03073       0.2678
	   Missing ET
    (ring energies combined in groups of ten)