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List of Jobs for run 9 as of 8/21/08
Updated on Thu, 2008-08-21 11:28. Originally created by sowinski on 2008-08-21 11:28.Attached is a list of jobs for run 9 with names of those volunteering to handle tasks.
Spin asymmetry statistical errors, part 2
Updated on Wed, 2008-08-20 18:32. Originally created by kurnadi on 2008-08-20 18:14.Updated the dE/dx cut. Previous asymmetry calculations was using +/- 3σ in dE/dx. The following has a tighter cut on the lower end, varies with momentum bins.
Isolation cut, rejection and efficiency versus cut value
Updated on Tue, 2008-08-19 15:13. Originally created by jwebb on 2008-08-19 15:13.Abstract: We show what isolation cut is needed to obtain a given pi0 rejection power in each pT bin.
1.0 MC Event Sample
- Pythia event sample (pibero's gamma trees) w/ proper weighting for partonic pT bins
- No offline trigger simulation
- full EEMC acceptance
2.0 Definition of Isolation Cut
We use an isolation cut, which consists of correcting the ET of the tower which contains the photon candidate based on the position of the candidate within the tower, and dividing that corrected ET by the sum of all towers w/in R < 0.3. The following links summarize the method.
- See You do not have access to view this node for definition of the 1-tower isolation cut and evaluation of rejection versus efficiency based on pythia events.
- See You do not have access to view this node for data vs MC comparison, including trigger simulation.
The links above show plots of rejection power vs. efficiency. It is informative to plot rejection vs. applied cut, and efficiency vs. applied cut. See figure 1 below.
Figure 1 -- Rejection power (red) or photon efficiency (black) vs. isolation cut.
geometry used in Simulation (plain) vs. Embedding
Updated on Mon, 2008-08-18 15:28. Originally created by bouchet on 2008-08-18 12:55.Geometry used in simulation/embedding for hits projection
For embedding with SSD, we project GEANT hits on real geometry.
Final Data Plots
Updated on Mon, 2008-08-18 10:08. Originally created by gdwebb on 2008-08-18 10:08.The following plots are for data.
Mid-rapidity Collins Asymmetry Calculation
Updated on Tue, 2008-09-02 08:19. Originally created by rfatemi on 2008-08-17 20:59.In order to estimate the order magnitude of the single spin Collins asymmetry at midrapidity I calcuated the following partonic components from jet reconstruction using the STAR PYTHIA + GEANT simu
Vertex splitting QA in the new Year 7 Au+Au production(P08ic w/Minuit3)
Updated on Wed, 2008-08-27 17:17. Originally created by melnimr on 2008-08-15 15:23.I have looked at the new P08ic AuAu production that was done with Minuit3 VF to test Anthony's modified VF.
Comparison of Different Calculations for z
Updated on Fri, 2008-08-15 10:34. Originally created by kocolosk on 2008-08-15 09:03.WORK IN PROGRESS
Data/MC comparison for 2006 Dijet Cross-section
Updated on Fri, 2008-08-15 14:10. Originally created by mattheww on 2008-08-14 15:05.I started with the 2006 Simulation Jet Trees. Using the ConeJets12 and PythiaJet branches, I associated the detector jets to the nearest pythia jet by distance in eta-phi space.
Spin asymmetry statistical errors
Updated on Wed, 2008-08-20 18:24. Originally created by kurnadi on 2008-08-11 22:06.This study on statistical errors was prompted by the horrible linear fit to the fill-by-fill inclusive electron asymmetry, as shown at the June 2008 Collaboration Meeting at UC Davis.