[Halld-pid-upgrade] Data Challenge Skims

[Justin Stevens]

Hi Paul,

The 2+, 2- option would be useful for me, and reduces the data volume significantly.  Is the tracking FOM listed on your webpage combined for all particles, or cut on a track-by-track basis?  I checked the eta'(2300) signal MC and this has a ~90% efficiency for a combined FOM, and ~85% efficiency when applied for each track, so it may be worth it to reduce the data volume by almost a factor of 2.

-Justin

On Feb 11, 2013, at 3:53 PM, Paul Mattione wrote:

> I would like to get input from members of the physics and pid-upgrade groups on what kind of community-wide skims we want to have for the data challenge data.  At the physics meeting today I presented some off-the-top-of-my-head ideas for these skims, and how large they would be:
> 
> https://halldweb1.jlab.org/wiki/index.php/Mattione_Update_02112013
> 
> Some of these are obviously untenable (e.g. 2+ 1- is too large).  Others need to be tweaked (e.g. the cut on vertex-z may cut low-theta tracks that don't have enough resolution).  
> 
> I'm hoping this email starts a discussion on what data sets would be interesting to have.  Please let me know what you guys think.  
> 
> - Paul
> 
> 
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