[b1_ana] Rates Update

[Elena Long]

Good afternoon,

Patricia and I have been working on the rates, and I think we've come to 
an agreement. There's a difference from last night, which stems from the 
fact that I was using old (larger) values for the spectrometer energy 
acceptance on the SHMS. They've been updated to what the SHMS can 
actually do, and new plots can be found at the link below.

I've also moved the <x> bins for b1 and Azz to reflect the central range 
that they are measuring over. The dark points on the kinematics plots 
show the central value of where we would park the spectrometer.

One thing that I'm currently unclear on is whether a PAC day consists of 
24 hours (100% efficiency) or 12 hours (50% efficiency). I've plotted 
both cases given 30 days (9 days at x=0.15 and 0.3, 10 days at x=0.35, 
and 30 days at x=0.45).

https://hallcweb.jlab.org/wiki/index.php/Elong-13-05-02

Now that the code has been cross-checked, this afternoon I'm going to 
scan over x and Q2 again to see if I can find a "sweet spot" for any of 
the points. Also in the plans is re-coloring the kinematics plots so 
that each data period is easy to see.

Take care,
Ellie

-- 
Elena Long, Ph.D.
Post Doctoral Research Associate
University of New Hampshire
elena.long at unh.edu
ellie at jlab.org
http://nuclear.unh.edu/~elong
(603) 862-1962

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