Download - Summary of FMS/Jet Meetings
Summary of FMS/Jet Meetings
September 11 2014
FMS Meeting: 9/8/14• Chris Dilks: Run 13 FMS Neutral Pion ALL
– https://drupal.star.bnl.gov/STAR/blog/dilks/zdc-local-polarimetr– https://drupal.star.bnl.gov/STAR/blog/dilks/relative-scaler-asymmetriesy
• Mriganka Mondal: Trigger Threshold Matching for Data and Simulations– http://
www.star.bnl.gov/protected/spin/mriganka/fms-simu/trigger/SimulationDtaThreshold.pdf
• Kevin Atkins: Systematic Errors on Collins Asymmetries– https://drupal.star.bnl.gov/STAR/blog/jkadkins/jet-meeting-h2h1-implementation
• Zilong Chang: Run 12 Inclusive Jet ALL
– https://drupal.star.bnl.gov/STAR/blog/zchang/run12-inclusive-jet-all-updates-0909
JET Meeting: 9/9/14
Christopher Dilks: Run13 FMS Inclusive Neutral Pion ALL
• ZDC Polarimetry• Bunch Fitting for Scaler Asymmetries
Mriganka Mondal: Trigger Threshold Matching for Data/Simulation
Kevin Atkins: Systematic Errors on Collins Asymmetries
Conclusions
ZiLong Zhang
• Trimming down eta range• Systematic uncertainties– Pt shift– Trigger and reconstruction bias– Residual transverse polarization– Non-collision background
8
Jet ALL with Run9 data vs. xT
• R=0.5 for 2012• |eta| < 0.9• Starting with the 7.1 GeV pT bin
ZiLong Chang
9
Systematic uncertainty – residual transverse polarization
Take (to be confirmed)
from run 6 pp200 to run12 pp510 by assuming xT scaling
for pT < 38 GeV so the residual transverse polarization systematic is
only negligible
10
Left to do
1. Calculate pT shift uncertainties by each trigger and combine them
2. Calculate trigger and reconstruction bias uncertainty by each trigger and
combine them, including the wrong z-vertex dilution
3. Residual transverse polarization is small and we could neglect it
4. Non-collision background yet to be determined
5. Calculate expected ALL with new DSSV and new NNPDF for comparison to
the Run 12 results