Root Tree Description
Description of all classes used to store output data (momentum units are GeV, position units are mm).
| Parameter | Definition | How it was calculated |
|---|---|---|
| class Event | ||
| Number | event number | |
| ReadTime | read time | |
| ProcTime | processing time | |
| class LHCOEvent | ||
| Event | LHCOEvent inherits all Event parameters | |
| Trigger | trigger word | |
| class LHEFEvent | ||
| Event | LHEFEvent inherits all Event parameters | |
| ProcessID | subprocess code for the event | hepup.IDPRUP |
| Weight | weight for the event | hepup.XWGTUP |
| CrossSection | cross-section (read from init, implemented only for Wizard evgen) | |
| ScalePDF | scale in GeV used in the calculation of the PDFs in the event | hepup.SCALUP |
| AlphaQED | value of the QED coupling used in the event | hepup.AQEDUP |
| AlphaQCD | value of the QCD coupling used in the event | hepup.AQCDUP |
| class LHEFWeight | ||
| ID | weight ID | |
| Weight | weight value | |
| class HepMCEvent | ||
| Event | HepMCEvent inherits all Event parameters | |
| ProcessID | unique signal process id | signal_process_id() |
| MPI | number of multi parton interactions | mpi() |
| Weight | weight for the event | |
| CrossSection | cross-section in pb | |
| CrossSectionError | cross-section error in pb | |
| Scale | energy scale, see hep-ph/0109068 | event_scale() |
| AlphaQED | QED coupling, see hep-ph/0109068 | alphaQED() |
| AlphaQCD | QCD coupling, see hep-ph/0109068 | alphaQCD() |
| ID1 | flavour code of first parton | pdf_info()->id1() |
| ID2 | flavour code of second parton | pdf_info()->id2() |
| X1 | fraction of beam momentum carried by first parton ("beam side") | pdf_info()->x1() |
| X2 | fraction of beam momentum carried by second parton ("target side") | pdf_info()->x2() |
| ScalePDF | Q-scale used in evaluation of PDF's (in GeV) | pdf_info()->scalePDF() |
| PDF1 | PDF (id1, x1, Q) | pdf_info()->pdf1() |
| PDF2 | PDF (id2, x2, Q) | pdf_info()->pdf2() |
| class GenParticle | ||
| PID | particle HEP ID number | hepevt.idhep[number] |
| Status | particle status | hepevt.isthep[number] |
| IsPU | 0 or 1 for particles from pile-up interactions | |
| M1 | particle 1st mother | hepevt.jmohep[number][0] - 1 |
| M2 | particle 2nd mother | hepevt.jmohep[number][1] - 1 |
| D1 | particle 1st daughter | hepevt.jdahep[number][0] - 1 |
| D2 | particle last daughter | hepevt.jdahep[number][1] - 1 |
| Charge | particle charge | |
| Mass | particle mass | |
| E | particle energy | hepevt.phep[number][3] |
| Px | particle momentum vector (x component) | hepevt.phep[number][0] |
| Py | particle momentum vector (y component) | hepevt.phep[number][1] |
| Pz | particle momentum vector (z component) | hepevt.phep[number][2] |
| P | particle momentum | |
| PT | particle transverse momentum | |
| Eta | particle pseudorapidity | |
| Phi | particle azimuthal angle | |
| Rapidity | particle rapidity | |
| T | particle vertex position (t component) | hepevt.vhep[number][3] |
| X | particle vertex position (x component) | hepevt.vhep[number][0] |
| Y | particle vertex position (y component) | hepevt.vhep[number][1] |
| Z | particle vertex position (z component) | hepevt.vhep[number][2] |
| class Vertex | ||
| T | vertex position (t component) | |
| X | vertex position (x component) | |
| Y | vertex position (y component) | |
| Z | vertex position (z component) | |
| ErrorT | vertex position error (t component) | |
| ErrorX | vertex position error (x component) | |
| ErrorY | vertex position error (y component) | |
| ErrorZ | vertex position error (z component) | |
| Index | vertex index | |
| NDF | number of degrees of freedom | |
| Sigma | vertex position (z component) error | |
| SumPT2 | sum pt^2 of tracks attached to the vertex | |
| GenSumPT2 | sum pt^2 of gen tracks attached to the vertex | |
| GenDeltaZ | distance in z to closest generated vertex | |
| BTVSumPT2 | sum pt^2 of tracks attached to the secondary vertex | |
| Constituents | references to constituents | |
| class MissingET | ||
| MET | mising transverse energy | |
| Eta | mising energy pseudorapidity | |
| Phi | mising energy azimuthal angle | |
| class ScalarHT | ||
| HT | scalar sum of transverse momenta | |
| class Rho | ||
| Rho | rho energy density | |
| Edges[2] | pseudorapidity range edges | |
| class Weight | ||
| Weight | weight for the event | |
| class Photon | ||
| PT | photon transverse momentum | |
| Eta | photon pseudorapidity | |
| Phi | photon azimuthal angle | |
| E | photon energy | |
| T | particle arrival time of flight | |
| EhadOverEem | ratio of the hadronic versus electromagnetic energy deposited in the calorimeter | |
| Particles | references to generated particles | |
| IsolationVar | isolation variable | |
| IsolationVarRhoCorr | isolation variable | |
| SumPtCharged | isolation variable | |
| SumPtNeutral | isolation variable | |
| SumPtChargedPU | isolation variable | |
| SumPt | isolation variable | |
| Status | 1: prompt, 2: non prompt, 3: fake | |
| class Electron | ||
| PT | electron transverse momentum | |
| Eta | electron pseudorapidity | |
| Phi | electron azimuthal angle | |
| T | particle arrival time of flight | |
| Charge | electron charge | |
| EhadOverEem | ratio of the hadronic versus electromagnetic energy deposited in the calorimeter | |
| Particle | reference to generated particle | |
| IsolationVar | isolation variable | |
| IsolationVarRhoCorr | isolation variable | |
| SumPtCharged | isolation variable | |
| SumPtNeutral | isolation variable | |
| SumPtChargedPU | isolation variable | |
| SumPt | isolation variable | |
| D0 | track transverse impact parameter | |
| DZ | track longitudinal impact parameter | |
| ErrorD0 | track transverse impact parameter error | |
| ErrorDZ | track longitudinal impact parameter error | |
| class Muon | ||
| PT | muon transverse momentum | |
| Eta | muon pseudorapidity | |
| Phi | muon azimuthal angle | |
| T | particle arrival time of flight | |
| Charge | muon charge | |
| Particle | reference to generated particle | |
| IsolationVar | isolation variable | |
| IsolationVarRhoCorr | isolation variable | |
| SumPtCharged | isolation variable | |
| SumPtNeutral | isolation variable | |
| SumPtChargedPU | isolation variable | |
| SumPt | isolation variable | |
| D0 | track transverse impact parameter | |
| DZ | track longitudinal impact parameter | |
| ErrorD0 | track transverse impact parameter error | |
| ErrorDZ | track longitudinal impact parameter error | |
| class Jet | ||
| PT | jet transverse momentum | |
| Eta | jet pseudorapidity | |
| Phi | jet azimuthal angle | |
| Mass | jet invariant mass | |
| DeltaEta | jet radius in pseudorapidity | |
| DeltaPhi | jet radius in azimuthal angle | |
| Flavor | jet flavor | |
| FlavorAlgo | jet flavor | |
| FlavorPhys | jet flavor | |
| TauFlavor | jet flavor according to Tau tagging module | |
| BTag | 0 or 1 for a jet that has been tagged as containing a heavy quark | |
| BTagAlgo | 0 or 1 for a jet that has been tagged as containing a heavy quark | |
| BTagPhys | 0 or 1 for a jet that has been tagged as containing a heavy quark | |
| TauTag | 0 or 1 for a jet that has been tagged as a tau | |
| TauWeight | probability for jet to be identified as tau | |
| Charge | tau charge | |
| EhadOverEem | ratio of the hadronic versus electromagnetic energy deposited in the calorimeter | |
| NCharged | number of charged constituents | |
| NNeutrals | number of neutral constituents | |
| NeutralEnergyFraction | charged energy fraction | |
| ChargedEnergyFraction | neutral energy fraction | |
| Beta | (sum pt of charged pile-up constituents)/(sum pt of charged constituents) | |
| BetaStar | (sum pt of charged constituents coming from hard interaction)/(sum pt of charged constituents) | |
| MeanSqDeltaR | average distance (squared) between constituent and jet weighted by pt (squared) of constituent | |
| PTD | average pt between constituent and jet weighted by pt of constituent | |
| FracPt[5] | (sum pt of constituents within a ring 0.1*i < DeltaR < 0.1*(i+1))/(sum pt of constituents) | |
| Tau[5] | N-subjettiness | |
| TrimmedP4[5] | first entry (i = 0) is the total Trimmed Jet 4-momenta and from i = 1 to 4 are the trimmed subjets 4-momenta | |
| PrunedP4[5] | first entry (i = 0) is the total Pruned Jet 4-momenta and from i = 1 to 4 are the pruned subjets 4-momenta | |
| SoftDroppedP4[5] | first entry (i = 0) is the total SoftDropped Jet 4-momenta and from i = 1 to 4 are the pruned subjets 4-momenta | |
| NSubJetsTrimmed | number of subjets trimmed | |
| NSubJetsPruned | number of subjets pruned | |
| NSubJetsSoftDropped | number of subjets soft-dropped | |
| Constituents | references to constituents | |
| Particles | references to generated particles | |
| class Track | ||
| PID | HEP ID number | |
| Charge | track charge | |
| P | track momentum | |
| PT | track transverse momentum | |
| Eta | track pseudorapidity | |
| Phi | track azimuthal angle | |
| CtgTheta | track cotangent of theta | |
| C | track curvature inverse | |
| Mass | particle mass | |
| EtaOuter | track pseudorapidity at the tracker edge | |
| PhiOuter | track azimuthal angle at the tracker edge | |
| T | track vertex position (t component) | |
| X | track vertex position (x component) | |
| Y | track vertex position (y component) | |
| Z | track vertex position (z component) | |
| TOuter | track position (t component) at the tracker edge | |
| XOuter | track position (x component) at the tracker edge | |
| YOuter | track position (y component) at the tracker edge | |
| ZOuter | track position (z component) at the tracker edge | |
| Xd | X coordinate of point of closest approach to vertex | |
| Yd | Y coordinate of point of closest approach to vertex | |
| Zd | Z coordinate of point of closest approach to vertex | |
| XFirstHit | X coordinate of point of closest approach to vertex | |
| YFirstHit | Y coordinate of point of closest approach to vertex | |
| ZFirstHit | Z coordinate of point of closest approach to vertex | |
| L | track path length | |
| D0 | track transverse impact parameter | |
| DZ | track longitudinal impact parameter | |
| Nclusters | Number of ionization clusters | |
| dNdx | Number of ionization clusters | |
| ErrorP | track momentum error | |
| ErrorPT | track transverse momentum error | |
| ErrorPhi | track azimuthal angle error | |
| ErrorCtgTheta | track cotangent of theta error | |
| ErrorT | time measurement error | |
| ErrorD0 | track transverse impact parameter error | |
| ErrorDZ | track longitudinal impact parameter error | |
| ErrorC | track curvature error track covariance off-diagonal terms | |
| Particle | reference to generated particle | |
| VertexIndex | reference to vertex | |
| class Tower | ||
| ET | calorimeter tower transverse energy | |
| Eta | calorimeter tower pseudorapidity | |
| Phi | calorimeter tower azimuthal angle | |
| E | calorimeter tower energy | |
| T | calo deposit time, averaged by sqrt(EM energy) over all particles | |
| X | calo tower position | |
| Y | calo tower position | |
| Z | calo tower position | |
| NTimeHits | number of hits contributing to time measurement | |
| Eem | calorimeter tower electromagnetic energy | |
| Ehad | calorimeter tower hadronic energy | |
| Etrk | total charged energy hitting tower | |
| Edges[4] | calorimeter tower edges | |
| Particles | references to generated particles | |
| class ParticleFlowCandidate | ||
| PID | HEP ID number | |
| Charge | track charge | |
| E | reconstructed energy [GeV] | |
| P | track momentum | |
| PT | track transverse momentum | |
| Eta | track pseudorapidity | |
| Phi | track azimuthal angle | |
| CtgTheta | track cotangent of theta | |
| C | track curvature inverse | |
| Mass | particle mass | |
| EtaOuter | track pseudorapidity at the tracker edge | |
| PhiOuter | track azimuthal angle at the tracker edge | |
| T | track vertex position (t component) | |
| X | track vertex position (x component) | |
| Y | track vertex position (y component) | |
| Z | track vertex position (z component) | |
| TOuter | track position (t component) at the tracker edge | |
| XOuter | track position (x component) at the tracker edge | |
| YOuter | track position (y component) at the tracker edge | |
| ZOuter | track position (z component) at the tracker edge | |
| Xd | X coordinate of point of closest approach to vertex | |
| Yd | Y coordinate of point of closest approach to vertex | |
| Zd | Z coordinate of point of closest approach to vertex | |
| XFirstHit | X coordinate of point of closest approach to vertex | |
| YFirstHit | Y coordinate of point of closest approach to vertex | |
| ZFirstHit | Z coordinate of point of closest approach to vertex | |
| L | track path length | |
| D0 | track transverse impact parameter | |
| DZ | track longitudinal impact parameter | |
| Nclusters | Number of ionization clusters | |
| dNdx | Number of ionization clusters | |
| ErrorP | track momentum error | |
| ErrorPT | track transverse momentum error | |
| ErrorPhi | track azimuthal angle error | |
| ErrorCtgTheta | track cotangent of theta error | |
| ErrorT | time measurement error | |
| ErrorD0 | track transverse impact parameter error | |
| ErrorDZ | track longitudinal impact parameter error | |
| ErrorC | track curvature error track covariance off-diagonal terms | |
| VertexIndex | reference to vertex | |
| NTimeHits | number of hits contributing to time measurement | |
| Eem | calorimeter tower electromagnetic energy | |
| Ehad | calorimeter tower hadronic energy | |
| Etrk | total charged energy hitting tower | |
| Edges[4] | calorimeter tower edges | |
| Particles | references to generated particles | |
| class HectorHit | ||
| E | reconstructed energy [GeV] | |
| Tx | angle of the momentum in the horizontal (x,z) plane [urad] | |
| Ty | angle of the momentum in the verical (y,z) plane [urad] | |
| T | time of flight to the detector [s] | |
| X | horizontal distance to the beam [um] | |
| Y | vertical distance to the beam [um] | |
| S | distance to the interaction point [m] | |
| Particle | reference to generated particle | |
| class CscCluster | ||
| Eta | eta of LLP | |
| Phi | phi of LLP | |
| PT | pt of LLP | |
| Px | px of LLP | |
| Py | py of LLP | |
| Pz | pz of LLP | |
| E | E of LLP | |
| Ehad | had energy of LLP | |
| Eem | em energy of LLP | |
| pid | LLP pid | |
| T | LLP decay time-photon travel time | |
| X | LLP decay x | |
| Y | LLP decay y | |
| Z | LLP decay z | |
| R | LLP decay z | |
| beta | LLP beta | |
| ctau | LLP ctau | |