[g13] Fwd: I Should've Noticed This Sooner

[Paul Mattione]

Begin forwarded message:

> From: Paul Mattione <pmatt at jlab.org>
> Date: March 8, 2014 3:02:55 PM EST
> To: Yordanka Ilieva <jordanka at jlab.org>
> Cc: Pawel Nadel-Turonski <turonski at jlab.org>
> Subject: I Should've Noticed This Sooner
> 
> Run 53580, hits in DC Sector 5 (notice hole in front in superlayers 3 & 4):
> 
> https://clasweb.jlab.org/rungroups/g13/wiki_secure/index.php/File:DCHoles_LayerVsWire_Sector5.gif
> 
> Run 53580, DC wire efficiencies (not efficiency is ~50% in this region instead of 0%): 
> 
> https://clasweb.jlab.org/rungroups/g13/wiki/index.php/File:DCEfficiency2D_Sector5_Page2_53850.jpg
> 
> And while these regions are grouped together in the database (thanks Yordanka), they are assigned efficiencies of 96% and 87% (since I guess this doesn't show up for all run #'s?).  Thus, tracks in this region are only barely rejected in MC, and there is a huge mismatch with data (See pink-region in attached histogram: is plotting relative Hit-based track efficiency (MC - Data) / Data.  
> 
> - Paul
> 

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