Version 10 (modified by 13 years ago) ( diff ) | ,
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CMS Detector Card for Delphes
Detector fiducial acceptance
- tracker : eta <= 2.5
- calorimeter (barrel) : eta <= 1.7
- calorimeter (end-cap) : eta <= 3.0
- calorimeter (fordward) : eta <= 5.0
- muon chamber : eta < 2.4
Hadronic calorimeter
sigma/E = C + N/E + S/\sqrt{E}, E in GeV
Electromagnetic calorimeter
sigma/E = C + N/E + S/\sqrt{E}, E in GeV
Muon smearing
Tracker
Tracker PT min =
Tracker efficiencies
TRACK_radius 129 radius of the BField coverage, in cm TRACK_length 300 half-length of the BField coverage, i\ n cm TRACK_bfield_x 0 X component of the BField, in T TRACK_bfield_y 0 Y component of the BField, in T TRACK_bfield_z 3.8 Z component of the BField, in T
Isolation criteria for leptons
PT thresholds
Jet reconstruction algorithm
B-tagging
Delphes describes b-tagging algorithms through 4 functions of two variables pT (x) and Eta (y) :
- b-tagging efficiencies
[K]*pow([alpha]*x,[beta])/(1+pow([alpha]*x,[beta])) K = 0.828 alpha = 0.048 beta = 2.386
- mistag for c-jets
[0]*x*exp([1]*x*x*x*x+[2]*x*x+[3]*x+[4] [0]=0.40 [1]=-2.19 [2]=2.79 [3]=3.01 [4]=-2.70
- mistag for gluon-jets and light-jets
[0]*x*exp([1]*x6+[2]*x5+[3]*x4+[4]*x3+[5]*x2+[6]*x+[7] [0]= 0.0036 [1]= -78.22 [2]= 129.81 [3]=-44.16 [4]=-4.13 [5]=0.49 [6]=1.25 [7]=0.59
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