Comparing RS Reco Tracks to CTF Reco Tracks
- Slides: 16
Comparing RS Reco. Tracks to CTF Reco. Tracks • A few comments on how these plots were made. • The reco. Track kinematical variables • The reco. Track resolution plots • The efficiency and the fake rate of reco. Tracks UCSD meeting October 12, 2007 R. Kelley
Tree Based Implementation 1) A CMSSW analyzer reads reco tracks and tracking particles from the Event and performs the association based on the standard associators (by. Hits, by. Chi 2) or a custom defined associator. 2) For each reco track, and corresponding simtrack, a set of variables are saved as leaves in a ROOT Tree: - reco track: p. T, φ, η, PT error, χ2/d. o. f. , #hits, … - (associated) tracking particle p. T, φ, η, . . . - association failing/success boolean 3) A set of macros are written to read the tree and produce the final histograms on the fly. UCSD meeting October 12, 2007 R. Kelley
RS vs CTF Two algorithms for reconstruction of “standard” charged particles from primary LHC collisions: Road. Search (RS) and Combinatorial. Track. Finder (CTF) • CMSSW 1_6_0 (can find in User. Code/rwkelley/Validation) • Ran over ~5 k events from TTbar release validation sample (/Rel. Val. TTbar/CMSSW_1_6_0 -Rel. Val-1189470628/GEN-SIM-DIGI-RECO ) UCSD meeting October 12, 2007 R. Kelley
Validation of Validation Plots UCSD meeting October 12, 2007 R. Kelley
Validation of Validation Plots UCSD meeting October 12, 2007 R. Kelley
Validation of Validation Plots UCSD meeting October 12, 2007 R. Kelley
Validation of Validation Plots UCSD meeting October 12, 2007 R. Kelley
Validation of Validation Plots UCSD meeting October 12, 2007 R. Kelley
Validation of Validation Plots δ = reco. Track. Variable - Sim. Track. Variable UCSD meeting October 12, 2007 R. Kelley
Validation of Validation Plots UCSD meeting October 12, 2007 R. Kelley
Validation of Validation Plots UCSD meeting October 12, 2007 R. Kelley
Validation of Validation Plots UCSD meeting October 12, 2007 R. Kelley
Validation of Validation Plots UCSD meeting October 12, 2007 R. Kelley
Validation of Validation Plots UCSD meeting October 12, 2007 R. Kelley
Validation of Validation Plots UCSD meeting October 12, 2007 R. Kelley
Validation of Validation Plots UCSD meeting October 12, 2007 R. Kelley
