STAR Protected
Update 02.17.2018 -- Run 9 pp Efficiency: Embedding
To continue the study of the tracking efficiency in run 9 pp, I calculated the track efficiency as a function of phi, eta, and pT from the run 9 dijet embedding.
Update 02.16.2018 -- Run 14 Purity: STAR vs. PHENIX Data
Below is the same plot as the one in the linked blog post, but the STAR AuAu 200 GeV points are "inclusive gamma-rich" triggers. The trigger and track requirements applied in the STAR&
GPC Meeting Updates
GPC Update I -- 2/16/18
Code review intro, impact of including N_{\gamma}>2 cone-clusters
Update 02.14.2018 -- Run 14 AuAu Purity
Below is a plot of the purity (R, technically) for Run 14 AuAu. The "exclusive" and "inclusive" gamma-rich variants are described in the post I've linked to below. The
Update 02.12.2018 -- Run 9 Purity: STAR vs. PHENIX Data
Below is a plot comparing R calculated from STAR data to PHENIX data for a variety of systems.
Update 02.09.2018 -- Run 9 pp Efficiency: Data
Below are the "efficiencies" for run 9 pp data (pi0 and gamma-rich triggers). By "efficiency" I mean the ratio of of tracks after QA cuts to those before QA cuts, so it's rea
Update 02.08.2018 -- Run 9 Embedding: Trigger Phi
Here are the trigger azimuth (detector and physics) for data (identified pi0) and the run 9 dijet embedding sample (charged hadrons). The trigger definitions are the same as in this post:
Update 02.07.2018 -- Underlying Event Study: Gamma-Pi0 Ratio
Another question in regards to the underlying event would be how does it change with trigger energy and with trigger species (gamma-rich vs.
HF minutes - 2018/02/01
1) Trigger bias of J/psi in Run15 p+p and p+Au - Takahito Todoroki
Update 02.05.2018 -- Run 9 Embedding Purity
Below are plots of the purity calculated from identified pi0 triggers from the run 9 dijet embedding sample. As the sample was generated using only hard 2-to-2 QCD processes, there should be no
The PicoDst format
Update 02.01.2018 -- Run 9 Purity
Continuing with the study of the gamma-rich purity in run 9 pp, I've checked the purity with a tighter zTtrk cut.
Update 01.31.2018 -- Run 9 pp: Underlying Event Study
An open question with regards to the "Uncorrelated Jets" method of approximating the underlying event is how to normalize the uncorrelated jet distribution (if at all).
Paper Proposal -----------------------------------------> Jets A_{LL} 2013
Title: Longitudinal double-spin asymmetry for inclusive jet and dijet production in polarized proton collisions at $\sqrt{s}=510$ GeV
Update 01.30.2018 -- Run 9 Purity
I've checked the purity of the gamma-rich trigger in run 9 pp as a function of eTtrg for "exclusive" gamma-rich triggers and "inclusive" gamma-rich triggers.