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source: git/README_4LHCb

Last change on this file was e715e8c, checked in by Michele Selvaggi <michele.selvaggi@…>, 5 years ago

added instruction for running on lxplus

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