[PRad] Some old studies related to the resolution vs vertex and Q2

Zhihong Ye yez at jlab.org
Fri Feb 10 12:35:31 EST 2017

Dear all,

I saw the presentation given by Xinzhan about the effect of GEM 
resolution to the vertex reconstruction and background study. I would 
like to point you back to the older studies we did in 2014 which led us 
to the decision of using GEM. One purpose to avoid Xinzhan and other 
students to duplicated the effort and repeat the studied which Chao Peng 
and other has done, and the other purpose is to refresh our memory about 
the issues when the resolution is poor and how we proposed to address 
the issues. It might give us some new idea about how to understand solve 
the current issue of poor vertex reconstruction.

First discussion of the Q2 resolution vs position resolution.



Following up study by Chao, Alexander and Ashot:

Best Regards
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Zhihong Ye, PHD
Physics Division, Medium Energy Group, Argonne National Lab
Office:  Bldg 203, Room C253,
Phone:   630-252-2305
Address: 9700 S. Cass Ave, Physics Division Bldg 203, Lemont, IL 60439

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