[b1_ana] Systematic Uncertainty Band
Dustin Keller
dustin at jlab.org
Tue May 28 15:29:22 EDT 2013
If we take dXi~ 0.01%, we have dAzz(drift) = 2E-4/.27/.2
dustin
On Tue, 28 May 2013, Long, Elena wrote:
> Good afternoon,
>
> If I could direct your attention to https://hallcweb.jlab.org/wiki/index.php/Elong-13-05-28#Including_Drift on the wiki, I've included the 9.2% systematic uncertainty as an error band underneath the estimated statistical uncertainties for b1 and Azz. I've also done the same when the uncertainty due to drift is included in the second plot.
>
> I do have a quick question about the 3.7E-3 estimate. If I use Pzz=0.2 and f=0.285 (as used for the systematics in the proposal), and the dQ=0.0001 and depsilon=0.0001, then I find dxi=0.0002 and dAzz^drift=7.02E-3, or about twice as much as was estimated in the proposal. The plots shown use 3.7E-3, but I was just wondering where that came from.
>
> Take care,
> Ellie
>
> --
> Elena Long, Ph.D.
> Post Doctoral Research Associate
> University of New Hampshire
> elena.long at unh.edu<mailto:elena.long at unh.edu>
> ellie at jlab.org<mailto:ellie at jlab.org>
> (603) 862-1962
> http://nuclear.unh.edu/~elong
>
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