| 1 | Delphes 4 LHCb
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| 2 | ==============
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| 3 |
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| 4 | The card "delphes_card_LHCb.tcl" contains a preliminary parametrization of the LHCb detector.
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| 5 |
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| 6 | - ParticlePropagator
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| 7 |
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| 8 | particles are propagated in a constant B field.
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| 9 |
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| 10 | - ChargedHadronMomentumSmearing/ElectronEnergySmearing/MuonMomentumSmearing
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| 11 |
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| 12 | charged particles momenta are smeared according to detector resolution
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| 13 |
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| 14 | - TrackMerger
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| 15 |
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| 16 | charged particles are merged into single collection for simpler future processing
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| 17 |
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| 18 | - ImpactParameterSmearing
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| 19 |
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| 20 | charged particles transverse IP are smeared according to known LHCb tracking
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| 21 | performance.
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| 22 |
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| 23 |
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| 24 | - IdentificationMap
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| 25 |
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| 26 | This module is a recent addition in order to map particle misidentification rates
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| 27 | and reconstruction efficiencies.
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| 28 |
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| 29 | An example is given in the card but can be expanded if needed.
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| 30 |
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| 31 | - ECAL/HCAL
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| 32 |
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| 33 | Calorimeter modules are used to parametrize the energy response and angular
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| 34 | resolution of neutral objects such as photons/neutral hadrons.
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| 35 |
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| 36 | - TreeWriter
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| 37 |
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| 38 | user specifies here which collections are stored in the output.
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| 39 | By default tracks, neutral hadrons and photons are stored in this card.
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| 40 | Tracks contain muons, electrons, and charged hadrons.
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| 41 |
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| 42 |
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| 43 | Quick start with Delphes
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| 44 | ========================
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| 45 |
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| 46 | 1) Compile:
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| 47 |
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| 48 | make
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| 49 |
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| 50 | 2) Simulate p p -> b b~ events
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| 51 |
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| 52 | wget http://cp3.irmp.ucl.ac.be/downloads/pp_bb.hep.gz
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| 53 | gunzip pp_bb.hep.gz
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| 54 | ./DelphesSTDHEP cards/delphes_card_LHCb.tcl delphes_output.root pp_bb.hep
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| 55 |
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| 56 |
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| 57 | For more details, please visit:
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| 58 |
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| 59 | https://cp3.irmp.ucl.ac.be/projects/delphes
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| 60 |
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| 61 |
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| 62 | Configure Delphes on lxplus.cern.ch
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| 63 | ====================================
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| 64 |
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| 65 | git clone git://github.com/delphes/delphes.git Delphes
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| 66 |
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| 67 | cd Delphes
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| 68 |
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| 69 | source /afs/cern.ch/sw/lcg/external/gcc/4.9.3/x86_64-slc6/setup.sh
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| 70 |
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| 71 | source /afs/cern.ch/sw/lcg/app/releases/ROOT/6.06.00/x86_64-slc6-gcc49-opt/root/bin/thisroot.sh
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| 72 |
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| 73 | make
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| 74 |
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