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Athena-Atlfast comes with two Analysis Algorithms as Standard. These are StandardNtupleMaker and TrackNtupleMaker. There are also a number of Example Algorithms in the AtlfastExamples package.
1) StandardNtupleMaker (Documentation)
The StandardNtupleMaker can be included in the Athena-Atlfast job by including the following line in the AtlfastStandardOptions.txt file:
Atlfast.members +={"Atlfast::StandardNtupleMaker/StandardNtupleMaker"};
This then creates an ntuple that is written into the run directory (unless another directory is specified). The name of the file containing the ntuple is set in the AtlfastOptions.txt file by the following line:
NtupleSvc.Output = {"FILE1 DATAFILE='atlfast.ntup' TYP='HBOOK' OPT='NEW'"};
The default name in the AtlfastOptions.txt file is atlfast.ntup and the default type is an HBOOK ntuple (a Root ntuple can also be defined). The ntuple file contains a subdirectory call atlfast which contains the actual ntuple data. The ntuple id number is 51. The ntuple contains information about all the reconstructed particles and jets along with overall information about each event, such as missing momentum. A full list of the variables stored in the ntuple is given in Table 3-1
|
BLOCK |
VARIABLE |
DESCRIPTION |
|
PLEPTONS |
NELE |
Number of isolated electrons |
|
PLEPTONS |
KFELE(NELE) |
pdg_id of isolated electrons |
|
PLEPTONS |
PXELE(NELE) |
X momentum of isolated electrons |
|
PLEPTONS |
PYELE(NELE) |
Y momentum of isolated electrons |
|
PLEPTONS |
PZELE(NELE) |
Z momentum of isolated electrons |
|
PLEPTONS |
EEELE(NELE) |
Energy of isolated electrons |
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|
|
|
|
PPHOTONS |
NPHO |
Number of isolated photons |
|
PPHOTONS |
KFPHO(NPHO) |
pdg_id of isolated photons |
|
PPHOTONS |
PXPHO(NPHO) |
X momentum of isolated photons |
|
PPHOTONS |
PYPHO(NPHO) |
Y momentum of isolated photons |
|
PPHOTONS |
PZPHO(NPHO) |
Z momentum of isolated photons |
|
PPHOTONS |
EEPHO(NPHO) |
Energy of isolated photons |
|
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|
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|
PLEPTONS |
NMUO |
Number of isolated muons |
|
PLEPTONS |
KFMUO(NMUO) |
pdg_id of isolated muons |
|
PLEPTONS |
PXMUO(NMUO) |
X momentum of isolated muons |
|
PLEPTONS |
PYMUO(NMUO) |
Y momentum of isolated muons |
|
PLEPTONS |
PZMUO(NMUO) |
Z momentum of isolated muons |
|
PLEPTONS |
EEMUO(NMUO) |
Energy of isolated muons |
|
|
|
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|
PMUXS |
NMUX |
Number of non-isolated muons |
|
PMUXS |
KFMUX(NMUX) |
pdg_id of non-isolated muons |
|
PMUXS |
PXMUX(NMUX) |
X momentum of non-isolated muons |
|
PMUXS |
PYMUX(NMUX) |
Y momentum of non-isolated muons |
|
PMUXS |
PZMUX(NMUX) |
Z momentum of non-isolated muons |
|
PMUXS |
EEMUX(NMUX) |
Energy of non-isolated muons |
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|
PPJETS |
NJET |
Number of reconstructed jets |
|
PPJETS |
KFJET(NJET) |
pdg_id of reconstructed jets tag |
|
PPJETS |
PXJET(NJET) |
X momentum of reconstructed jets |
|
PPJETS |
PYJET(NJET) |
Y momentum of reconstructed jets |
|
PPJETS |
PZJET(NJET) |
Z momentum of reconstructed jets |
|
PPJETS |
EEJET(NJET) |
Energy of reconstructed jets |
|
PPJETS |
PTcalo(NJET) |
Transverse Momentum in calorimeter |
|
PPJETS |
PTbjet(NJET) |
Transverse momentum of b-jets |
|
PPJETS |
PTujet(NJET) |
Transverse momentum of u-jets |
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|
PPJETS |
NJETB |
Number of reconstructed jets calorbrated with AtlfastB |
|
PPJETS |
KFJETB(NJET) |
pdg_id of reconstructed jets tag calorbrated with AtlfastB |
|
PPJETS |
PXJETB(NJETB) |
X momentum of reconstructed jets calorbrated with AtlfastB |
|
PPJETS |
PYJETB(NJETB) |
Y momentum of reconstructed jets calorbrated with AtlfastB |
|
PPJETS |
PZJETB(NJETB) |
Z momentum of reconstructed jets calorbrated with AtlfastB |
|
PPJETS |
EEJETB(NJETB) |
Energy of reconstructed jets calorbrated with AtlfastB |
|
PHISTORY |
NPART |
Total number of isolated particles |
|
PHISTORY |
KFPART(NPART) |
pdg_id of particles |
|
PHISTORY |
PXPART(NPART) |
X momentum of particles |
|
PHISTORY |
PYPART(NPART) |
Y momentum of particles |
|
PHISTORY |
PZPART(NPART) |
Z momentum of particles |
|
PHISTORY |
EEPART(NPART) |
Energy of particles |
|
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|
|
INFO |
ISUB |
Process |
|
INFO |
JETB |
Number of b-tagged jets |
|
INFO |
JETC |
Number of c-tagged jets |
|
INFO |
JETTAU |
Number of tau-tagged jets |
|
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|
|
|
PMISSING |
PXMISS |
Measured missing X momentum |
|
PMISSING |
PYMISS |
Measured missing Y momentum |
|
PMISSING |
PXNUE |
X momentum of invisibles |
|
PMISSING |
PYNUE |
Y momentum of invisibles |
Table 3-1. The StandardNtuple Variables
2) TrackNtupleMaker (Documentation)
The TrackNtupleMaker was available from Atlfast-00-00-19 and later, thus it is not available in the 2.1.x release. To include it in the Athena-Atlfast job the following line must be included in the StandardAtlfastOptions.txt file:
Atlfast.members +={"Atlfast::TrackNtupleMaker/TrackNtupleMaker"};
Like the StandardNuple, the TrackNtuple will be put in the atlfast.ntup HBOOK file atlfast.ntup. It is also in the Atlfast directory and has id number 52. The TrackNtuple contains the information about the tracks in the event. A full list of the variables stored in the ntuple is given in Table 3-2
|
BLOCK |
VARIABLE |
DESCRIPTION |
|
PTRACKS |
NTRA |
Number of tracks |
|
PTRACKS |
KPTRA(NTRA) |
Parrticle Position |
|
PTRACKS |
KFTRA(NTRA) |
Particle code for track |
|
|
|
|
|
PTRACKS |
D0TRA(NTRA) |
d0 track parameter after smearing |
|
PTRACKS |
Z0TRA(NTRA) |
z0 track parameter after smearing |
|
PTRACKS |
PHITRA(NTRA) |
phi track parameter after smearing |
|
PTRACKS |
COTTRA(NTRA) |
cot(theta) track parameter after smearing |
|
PTRACKS |
PTINVTRA(NTRA) |
q/pT track parameter after smearing |
|
|
|
|
|
PTRACKS |
D0TRACRU(NTRA) |
d0 track parameter before smearing |
|
PTRACKS |
Z0TRACRU(NTRA) |
z0 track parameter before smearing |
|
PTRACKS |
PHITRACRU(NTRA) |
phi track parameter before smearing |
|
PTRACKS |
COTTRACRU(NTRA) |
cot(theta) track parameter before smearing |
|
PTRACKS |
PTINVTRACRU(NTRA) |
q/pT track parameter before smearing |
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|
PTRACKS |
CORR11TRA(NTRA) |
Correlation Coefficents between track variables |
|
PTRACKS |
CORR21TRA(NTRA) |
Correlation Coefficents between track variables |
|
PTRACKS |
CORR31TRA(NTRA) |
Correlation Coefficents between track variables |
|
PTRACKS |
CORR41TRA(NTRA) |
Correlation Coefficents between track variables |
|
PTRACKS |
CORR51TRA(NTRA) |
Correlation Coefficents between track variables |
|
PTRACKS |
CORR22TRA(NTRA) |
Correlation Coefficents between track variables |
|
PTRACKS |
CORR23TRA(NTRA) |
Correlation Coefficents between track variables |
|
PTRACKS |
CORR24TRA(NTRA) |
Correlation Coefficents between track variables |
|
PTRACKS |
CORR25TRA(NTRA) |
Correlation Coefficents between track variables |
|
PTRACKS |
CORR33TRA(NTRA) |
Correlation Coefficents between track variables |
|
PTRACKS |
CORR34TRA(NTRA) |
Correlation Coefficents between track variables |
|
PTRACKS |
CORR35TRA(NTRA) |
Correlation Coefficents between track variables |
|
PTRACKS |
CORR44TRA(NTRA) |
Correlation Coefficents between track variables |
|
PTRACKS |
CORR45TRA(NTRA) |
Correlation Coefficents between track variables |
|
PTRACKS |
CORR55TRA(NTRA) |
Correlation Coefficents between track variables |
Table 3-2. The TrackNtuple Variables