Electrons Scone (Tight)  

 These plots are a repeat of Electrons(All) with a further "Tight" electron selection
 applied.
 
 N
 -----
 Number of electrons per event.

 Exchange 29-Apr-2003:
 Question (HTD): What distinguishes a "Tight" electron from a "Loose" electron.
 Answer      (): 

 ET
 -----
 Transverse energy (GeV).

 ETA
 -----
 The eta (physics) of electrons.

 PHI
 -----
 The phi of electrons.
 
 ISO
 -----
 Isolation.
 
 EMF
 -----
 Electromagnetic Fraction.  

 HMX41
 -----
 H-matrix in 41 dimensions.

 HMX9
 -----
 H-matrix in 9 dimensions.
 
 PHI vs Eta
 ----------
 A two-dimensional distribution. I suppose we are looking for hot spots or 
 dead regions.