D0 v1 analysis meeting - 2/23

 

Subhash, Liang, Sooraj, Declan, Spiros, Yue, Xin
 
Subhash
- P2, difference in D0bar v1 Run14 vs 16, different sign of slope, but also there is some difference in D0 v1 slope to between Run14 vs. Run16. The change from Run14 ->Run16 for D0 and D0bar seems to be comparable.
not efficiency corrected, systematic errors discussed in slide 11
- P8, inclusive TPC charged hadron v1, global tracks with dca<3cm
- P9, efficiency is expected to have dependence on luminosity
     Sooraj - previous efficiency calculation using primary tracks, will update with global tracks.
- P11,  efficiency correction includes rapidity dependence, but this is so far for 2014 data.
     in 2016 data, we may havent accounted for the potential rapidity of efficiency (observed nPxlHit increase with z position for the first layer of PXL) in the 2016 data.
 
Liang
have Sooraj’s results, will update the slides with all three analyses
P3, Liang - use the efficiency from the v2 paper, since the spectra used before (published one) is obsoloted, we better use the final spectra efficiency (Guannan or Xiaolong).
     Subhash - compare the phi integrated yield
P4, weight issue! - to compare the yield without efficiency weighting.
P10, Subhash put down the details how he derived the blue data points 
 
 
Sooraj
P2, also st_nosst in production2, probably 100-150M events 
      please use to the same good run list
P4, particularly for this figure, try to make sure compare either both no efficiency correction or without efficiency correction
      Action items: pT spectra from four rapidity bins
P13, phi dependent of efficiency correction
 
 
Action items:
Sooraj:  working on the 2016 efficiency with global track input
Liang: lead the comparison between different analyses
Subhash:   pT spectra for different rapidity bins, separate D0 and D0bar, 2014 ready
                  2016 waiting for Sooraj’s efficiency input.
All: please send out all analysis cuts
event level cuts, track quality / kinematic cuts, track PID cuts and D0 topogical cut