Hi Norman and everyone else, 

I agree that this is a good idea.  What are the cuts you used for this skim? 

I think we decided last week that we’ll need to run a “pass 2.1” because the momentum scale is screwed for vertexed particles now that we are using the full field map.  As we discussed, the right thing to do is to swim the tracks (no problem) and their covariance (not coded yet) back to ~ the target (or a better approximation of where the vertex is) using the full b-field and then run vertexing.  The quick thing to do is to just ignore the varying b-field as we were before.  

I propose that we go through run 5772 (the magic run) with this quick fix as well as with the fixes to the DSTs, the DQM plots, and with all skims (including the v0 skim).  Then we can re-run the whole pass if we want to when we get the covariance propagation working.  

Hay or neigh?

mg

On Sep 27, 2015, at 10:18 PM, Graf, Norman A. <[log in to unmask]> wrote:

Hello All,

 I'd like to propose that we run the V0CandidateFilter 

the next time we make a pass over the data. Here

are the statistics running over the pass2 reconstruction

of the first partition of Run 5772:

 

V0CandidateFilter Summary:
events processed = 251823
events passed    = 4201
       rejection = 0.016682352287122303

 

Please let me know if you have any questions or need

any additional information.

Thanks,

Norman

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