= 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

[[Image(accept.gif)]]

== 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, in 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 

Function extracted from 

Function extracted from [http://cdsweb.cern.ch/record/1366061/files/BTV-11-001-pas.pdf BTV11-001] Figure 3 (a)

[K] * pow([alpha]*x,[beta]) / ( 1 + pow([alpha]*x,[beta]) ) \\
K = 0.828
alpha = 0.048
beta = 2.386

- mistag for c-jets

Function extracted from [http://cdsweb.cern.ch/record/1194494/files/BTV-09-001-pas.pdf BTV-09-001] Figure 6 (right)

[0]*x*exp ( [1]*x^4^ + [2]*x^2^ + [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

Function extracted from [http://cdsweb.cern.ch/record/1194494/files/BTV-09-001-pas.pdf BTV-09-001] Figure 6 (right)

[0]*x*exp ( [1]*x^6^ + [2]*x^5^ + [3]*x^4^ + [4]*x^3^ + [5]*x^2^ + [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