# Presentation: 544738

## D0 Jets

## In Top_analyze or Athena

- // (Run II 0.5 cone algorithm with preclustering)
- string JetAlgo_type = "PreSCilcone"
- string JetAlgo_names  = ( "towers" "coneSize" "Radius_of_Cone" "Min_Jet_ET")
- float  JetAlgo_values = (        0.            0.3                     0.5                        8.      )
- //
- // Parameter for Jet Energy Scale Correction
- bool   JetEnergyScale          =        true
- bool   JetEnergyScale_muontag  = true

-                      /  rcp / D0ChunkAnalyze.rcp

- change to :
- partons
- particles

- then these must be changed to false

## #   Standard block names for reco_analyze

- There are some standard rcp used in reco_analyze for the jet algorithms ran in d0reco in which we have defined a scheme for the naming of the prefix: JAXY, where
-     * A is the algorithm:
-           o K for kT
-           o C for cone
-           o S for simple cone
-           o N for CellNN
-           o E for Emnn
-     * X represent the type of data used:
-           o C for calorimeter data
-           o M for Monte Carlo particles
-           o P for Monte Carlo partons
-     * Y represents a parameter set
- That translates into :
-     * JCCG : RUN I cone on cal towers R=0.7, with NN preclustering
-     * JCCH : RUN I cone on cal towers R=0.5, with NN preclustering
-     * JCCI : RUN I cone on cal towers R=0.3, with NN preclustering
-     * JCC7 : RUN I cone on cal towers R=0.7, with simple cone preclustering
-     * JCM7 : RUN I cone on MC particles R=0.7, with simple cone preclustering

##  JAXY

-     * A is the algorithm:
-           o K for kT
-           o C for cone
-           o S for simple cone
-           o N for CellNN
-           o E for Emnn
-     * X represent the type of data used:
-           o C for calorimeter data
-           o M for Monte Carlo particles
-           o P for Monte Carlo partons
-     * Y represents a parameter set
-   * JCCA : RUN II cone on cal towers R=0.7
-     * JCMG : idem on MC particles
-     * JCPG : idem on MC partons
-     * JCCB : RUN II cone on cal towers R=0.5
-     * JCMB : idem on MC particles
-     * JCPB : idem on MC partons
-     * JCCC : RUN II cone on cal towers R=0.3
-     * JCMC : idem on MC particles
-     * JCPC : idem on MC partons
-     * JKC1 : kT RUN I on cal towers D=1
-     * JKM1 : idem on MC particles
-     * JKCA : kT RUN II on cal towers D=1
-     * JKMA : idem on MC particles
-     * JKCB : kT RUN II on cal towers D=0.4
-     * JKMB : idem on MC particles

## JetAlgo_types

- // (Run II 0.5 cone algorithm with preclustering)
- string JetAlgo_type = "PreSCilcone"
- string JetAlgo_names  = ( "towers" "coneSize" "Radius_of_Cone" "Min_Jet_ET")
- float  JetAlgo_values = (        0.            0.3                     0.5                        8.      )

- _JetAlgo_types_
- cone
- PreNNcone
- PreSCcone
- ilcone
- PreNNilcone
- PreSCilcone
- scone
- EMNN
- ConePreKT
- PreKT
- GeomPreKT
- From : JetAlgoInfo package

## Extracting QCD - inclusive from  

- Event # is 0
-  id 21 E 669.206 pt 0.653522 parent id 0   - gluon
-  id 21 E 190.604 pt 0.416215 parent id 0     diff 478.602
-  id 1 E 34.8521 pt 9.71758 parent id 21     - down & antidown quark
-  id -1 E 68.2385 pt 12.6132 parent id 21     total 103.091 diff  87.5
-  id 23 E 103.091 pt 15.7099 parent id 0       Z
-  id 23 E 103.091 pt 15.7099 parent id 0
-  id 11 E 48.6631 pt 38.0618 parent id 23         -            electron
-  id 22 E 0.337637 pt 0.265241 parent id 23
-  id -11 E 54.0895 pt 54.0027 parent id 23                 -  positron
-  id 22 E 0.000384438 pt 0.000384364 parent id 23     total 103.09
-  id -1 E 19.7874 pt 1.09119 parent id 21
-  id 21 E 7.58414 pt 0.473604 parent id 21
-  id 21 E 21.8103 pt 0.749341 parent id 21           total 49.1818
-  id 21 E 504.602 pt 2.03176 parent id 21            from 478.602 and diff in 87.5-49.1818
-  id 1 E 20.8546 pt 0.439262 parent id 0
-  id 1 E 102.435 pt 1.97383 parent id 21
-  id -1 E 62.6756 pt 0.329602 parent id 0
-  id 2203 E 288.84 pt 0.846207 parent id 0
-  id 21 E 64.4004 pt 1.10593 parent id 21
-  id 21 E 0.358559 pt 0.341552 parent id 21
-  etc...

## The QCD - Inclusive mc p13 sample

- QCD (u d s g) - Pythia requested by the New Phenomena group
- in the following pt regions
- 5  <pt<10  5K events
- 10<pt<20  5K events                          pt range
- 20<pt<40  5K events
- definition name : p13.05.00_qcd_incl_pt10-20_mb-0.5_tmb
- Top Analyze was run over the thumbnails with all quality cuts on the jets removed
- The partons were selected by being the first generation of u,d,s,or gluon

- The QCD - Inclusive mc p14 sample
- A mc p14 QCD(u d s g) in Pythia has been requested by the New Phenomena group the file have not been generated yet
- Used: pythia mc p14.03.01
- Athena was run over the thumbnails and the partons were selected
- by having pt>11.0 and being formed at the Z decayed

## MCP 13 QCD Reco Efficiency

## MCP 14 RECO EFF

## Overlay of QCD MCP13 and MCP14 RECO Effici

## QCD MCP14 Parton Efficiency and Particle Efficiency

## MC P14 Higgs Parton Effic and Particle Effic

## Higgs Reco Effic with all quality cuts

## Slide 14

## Ratio of b jet reco eff / qcd jete reco eff

- parton pt GeV

- Central Region
- -0.7 < eta < 0.7
- Fit function
- tanh ( p0 * x + p1)

## Ratio b jet reco eff / qcd jet reco eff  middle and central region

- Middle Region
- -1.7<eta<-0.7 or 0.7<eta<1.7
- tanh( p0*x + p1)

- parton pt GeV

- Parton pt GeV

- Forward Region
- -2.5<eta<-1.6 or 1.6<eta<2.5
- tanh( p0*x + p1)

## Slide 17

## Slide 18

## Slide 19

## Slide 20

## Slide 21

## Slide 22