[Bubble] MDL (5 MeV dipole)

Jay Benesch benesch at jlab.org
Tue Apr 28 18:31:35 EDT 2015


On page 10 I mention a residual problem on the fifth order fit for 25 
degree bend for the 3 MeV/c point.  I just checked it and P is OK.  It 
may be that I simply transferred too few decimal places from my 
spreadsheet to my graphing package for low momenta.  I should have 
transferred four, not three, if I wanted high accuracy at low momentum. 
  Yet when I add a decimal place to that one point, the residual gets 
larger, not smaller.  I should probably go back and redo everything with 
four decimal places for P.  Argh.

OTOH, this experiment doesn't care about anything below 7.85 MeV KE and 
my residuals are fine there.  So maybe I won't.  Anyone got a summer 
student who could be persuaded to take my spreadsheets with all 
available decimal places and re-fit everything in R?  A valuable skill 
in the job market is R.

Jay


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