STAR QA Board

["Van Buren, Gene" <gene@bnl.gov>]

Hi, Lanny and all

The noise in RDO 20:3 does have the potential to affect tracking. I just made a plot of NHitsFit for tracks going through this region for a couple runs in that range and I see that there are still tracks with nearly the full number of possible hits, so some tracks are picking up these hits.

-Gene

On May 1, 2021, at 3:34 PM, Ray, Robert L <ray@physics.utexas.edu> wrote:

Hi Gene:

Two things came up yesterday that I need to ask you about.

1) There were runs on day 114 that had very few files processed by fast-offline.

I see that today there are more. Great! I'll ask Yan to go back and

complete the QA and report for these runs. Thanks!

2) For runs 22115046 - 22116015 TPC sector 20 , RDO 3 was partly filled

with noise from the previous run. Will these false hits affect tracking?

Thanks,

Lanny

PicoDst.Draw("abs(Track.mNHitsFit):atan2(Track.mPMomentumY,Track.mPMomentumX)+0.009*sign(Track.mNHitsFit)/sqrt(sq(Track.mPMomentumY)+sq(Track.mPMomentumX))>>hist1(100,-1.047,0,75,0.5,75.5)","Track.mPMomentumZ<0&&Track.mOriginZ<-30","zcol")