MET (No Cuts)

 These must be among the most familiar distributions at DZero. We expect components
 of MET to be 

 MET
 -----
 The square-root of the sum of the squares of the MET components. In the run
 I looked at first the mean was 9.1 GeV.  The number of events in the 20 GeV bin
 was approximately 1/10th that in the peak.

 MEY
 -----
 Missing energy Y-component.  We expect this to be small and symmetric around zero.
 The RMS is under 8 GeV.

 MRX
 -----
 Missing energy X-component.  We expect this to be small and symmetric around zero.
 The x and y resolutions should be the same as each other.