== Root Tree Description ==

Description of all classes used to store output data.


||= Parameter =||= Definition =||= How it was calculated =||
|| || || ||
|||||| class Event ||
|| || || ||
|| Number || event number ||  ||
|| || || ||
|||||| 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 ||
|| 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 HepMCEvent ||
|| || || ||
|| Event || HepMCEvent inherits all Event parameters ||  ||
|| ProcessID || unique signal process id  || signal_process_id() ||
|| MPI || number of multi parton interactions  || mpi()  ||
|| 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 || generator specific status code: [http://lcgapp.cern.ch/project/simu/HepMC/205/status.html HepMC status codes], [http://webber.home.cern.ch/webber/hw65_manual.html#htoc96 Herwig status codes], [https://herwig.hepforge.org/trac/wiki/FaQs#WhichHepMCstatuscodesareusedWhatdotheymean Herwig++ status codes], [http://home.fnal.gov/~mrenna/lutp0613man2/node49.html Pythia status codes] ||  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] ||
|| 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 MissingET ||
|| || || ||
|| MET || mising transverse energy ||  ||
|| Phi || mising energy azimuthal angle ||  ||
|| || || ||
|||||| class ScalarHT ||
|| || || ||
|| HT || scalar sum of transverse momenta ||  ||
|| || || ||
|||||| class Photon ||
|| || || ||
|| PT || photon transverse momentum ||  ||
|| Eta || photon pseudorapidity ||  ||
|| Phi || photon azimuthal angle ||  ||
|| E || photon energy ||  ||
|| EhadOverEem || ratio of the hadronic versus electromagnetic energy deposited in the calorimeter ||  ||
|| Particles || references to generated particles ||  ||
|| || || ||
|||||| class Electron ||
|| || || ||
|| PT || electron transverse momentum ||  ||
|| Eta || electron pseudorapidity ||  ||
|| Phi || electron azimuthal angle ||  ||
|| Charge || electron charge ||  ||
|| EhadOverEem || ratio of the hadronic versus electromagnetic energy deposited in the calorimeter ||  ||
|| Particle || reference to generated particle ||  ||
|| || || ||
|||||| class Muon ||
|| || || ||
|| PT || muon transverse momentum ||  ||
|| Eta || muon pseudorapidity ||  ||
|| Phi || muon azimuthal angle ||  ||
|| Charge || muon charge ||  ||
|| Particle || reference to generated particle ||  ||
|| || || ||
|||||| class Jet ||
|| || || ||
|| PT || jet transverse momentum ||  ||
|| Eta || jet pseudorapidity ||  ||
|| Phi || jet azimuthal angle ||  ||
|| Mass || jet invariant mass ||  ||
|| BTag || 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 ||  ||
|| Charge || tau charge ||  ||
|| EhadOverEem || ratio of the hadronic versus electromagnetic energy deposited in the calorimeter ||  ||
|| Constituents || references to constituents ||  ||
|| Particles || references to generated particles ||  ||
|| || || ||
|||||| class Track ||
|| || || ||
|| PID || HEP ID number ||  ||
|| Charge || track charge ||  ||
|| PT || track transverse momentum ||  ||
|| Eta || track pseudorapidity ||  ||
|| Phi || track azimuthal angle ||  ||
|| !EtaOuter || track pseudorapidity at the tracker edge ||  ||
|| !PhiOuter || track azimuthal angle at the tracker edge ||  ||
|| X || track vertex position (x component) ||  ||
|| Y || track vertex position (y component) ||  ||
|| Z || track vertex position (z component) ||  ||
|| 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 ||  ||
|| Particle || reference to generated particle ||  ||
|| || || ||
|||||| class Tower ||
|| || || ||
|| ET || calorimeter tower transverse energy ||  ||
|| Eta || calorimeter tower pseudorapidity ||  ||
|| Phi || calorimeter tower azimuthal angle ||  ||
|| E || calorimeter tower energy ||  ||
|| Eem || calorimeter tower electromagnetic energy ||  ||
|| Ehad || calorimeter tower hadronic energy ||  ||
|| Edges![4] || calorimeter tower edges ||  ||
|| Particles || references to generated particles ||  ||