[Color_transp] CT results

[Holly Szumila-Vance]

Another interesting observation is that the shape of the hydrogen is the same shape as the carbon transparency. 



> On Jul 14, 2020, at 9:57 PM, Holly Szumila-Vance <hszumila at jlab.org> wrote:
> 
> Hi all,
> 
> The good news is that I have our current result summarized as attached, but I have a few questions about these. 
> 
> The bad news is that for some reason efficiency values were changed in the spreadsheet since I did our “final calculation” last week. Also, apparently I’d used the wrong tracking numbers from the sheet. Fixing these two things, I re-visited the Pmiss, Emiss cut for hydrogen. I now think this cut should be at 55 MeV. This doesn’t completely minimize the systematic, nor is it the closest fit to 1, but it sort of balances the two (see page 2 attached). Let me know if you have different thoughts about this. 
> 
> The hydrogen results aren’t quite as clean as what I showed last week, but the systematic is about 2.6% now. 
> 
> The last question I have is about the overall carbon systematic. I took the 0.026 from hydrogen and x0.56x1.12 to scale to the same approximate scale as carbon. Let me know if this should be done differently, and I can change the plot. 
> 
> -Holly
> 
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