The Level 2 Trigger Examine histograms


     The Level 2 Trigger Examine macros produce several histograms.  Each
histogram has a reference plot (the red solid line) from a past run, with
data points (the black crosses) from the current run.  The Global Monitor
shifter is asked to watch for discrepancies between these plots.  

     Global plots:
The first group of histograms show quantities that have passed the Level 2
trigger.  

1) number of L2 Global jets 		The number of jets in each event.							
2) P_T of L2 Global jets		The measured Pt of each jet (GeV).

3) eta of L2 Global jets		Detector eta, from -2.4 to 2.4, of							the jet seed tower.
4) phi of L2 Global jets		Detector phi, from 0 to 2*pi, of the
					jet seed tower.
5) eta vs phi of L2 Global jets	    	Scatter plot of plots #3 vs. #4.

6) number of L2 Global em objects	The number of EM objects in each event.

7) P_T of L2 Global em objects		The measured Pt of each EM object (GeV).

8) eta of L2 Global em objects		Detector eta, from -2.4 to 2.4, of
					each EM object.
9) phi of L2 Global em objects		Detector phi, from 0 to 2*pi, of each
					EM object.
10) eta vs phi of L2 Global em objects	   Scatter plot of plots #8 vs. #9.

11) isolation of L2 Global em objects	 

12) EM Fraction of Global L2 em objects	   EM fraction for each EM object,
					   from 0 to 1.
13) number of L2 Global muons		The number of muons in each event.

14) P_T threshold of L2 Global muons	

15) eta of L2 Global muons		Detector eta, from -2.4 to 2.4, of
					each muon.
16) phi of L2 Global muons		Detector eta, from -2.4 to 2.4, of
					each muon.
17) eta vs phi of L2 Global muons	Scatter plot of plots #15 vs. #16.

18) quality of L2 Global muons		Muon quality.   1 = loose track
							2 = medium track
							3 = tight track
19) sign of L2 Global muons		Sign of each muon, 0 = negative and
							   1 = positive. 

   
     Preprocessor plots (or Worker plots):
The remaining plots are from the Level 2 preprocessors (or L2 workers).  They 
show the quantities that were passed to the L2 Global processor - the trigger
inputs before cutting.

1) number of L2 cal EM objects		The number of EM objects in each event.

2) E_T of L2 cal EM objects		The measured Et of each EM object (GeV).

3) eta of L2 cal EM objects		Detector eta, from -2.4 to 2.4, of
					each EM object.
4) phi of L2 cal EM objects		Detector phi, from 0 to 2*pi, of each
					EM object.
5) eta vs phi of L2 cal EMs		Scatter plot of plots #3 vs. #4.

6) EM Fraction of L2 cal EM objects	EM fraction for each EM object, 
					from 0 to 1.
7) isolation of L2 cal EM objects	

8) number of L2 cal jets		The number of jets in each event.

9) E_T of L2 cal jets			The measured Et of each jet (GeV).

10) eta of L2 cal jets			Detector eta, from -2.4 to 2.4, of
					the jet seed tower.
11) phi of L2 cal jets			Detector phi, from 0 to 2*pi, of the
					jet seed tower.
12) eta vs phi of L2 cal jets		Scatter plot of plots #10 vs. #11.

13) number of L2 preprocessor muons	The number of muons in each event.

14) eta of L2 preprocessor muons	Detector eta, from -2.4 to 2.4, of
					each muon.
15) phi of L2 preprocessor muons	Detector eta, from -2.4 to 2.4, of
					each muon.
16) eta vs phi of L2 preprocessor muons	   Scatter plot of plots #14 vs. #15.