PYTHIA  8.312
Public Member Functions | Public Attributes | List of all members
LHEF3FromPythia8 Class Reference

#include <LesHouches.h>

Inheritance diagram for LHEF3FromPythia8:
LHAup

Public Member Functions

 LHEF3FromPythia8 (Event *eventPtrIn, const Info *infoPtrIn, int pDigitsIn=15, bool writeToFileIn=true)
 Constructor.
 
bool setInit ()
 Routine for reading, setting and printing the initialisation info. More...
 
void setEventPtr (Event *evPtr)
 Routine for reading, setting and printing the next event.
 
bool setEvent (int=0)
 Routine for reading, setting and printing the next event. More...
 
string getEventString ()
 
bool openLHEF (string fileNameIn)
 Function to open the output file. More...
 
bool closeLHEF (bool updateInit=false)
 Function to close (and possibly update) the output file. More...
 
- Public Member Functions inherited from LHAup
virtual ~LHAup ()
 Destructor.
 
void setPtr (Info *infoPtrIn)
 Set pointers.
 
virtual void newEventFile (const char *)
 Method to be used for LHAupLHEF derived class.
 
virtual bool fileFound ()
 
virtual bool useExternal ()
 
int idBeamA () const
 Give back info on beams.
 
int idBeamB () const
 
double eBeamA () const
 
double eBeamB () const
 
int pdfGroupBeamA () const
 
int pdfGroupBeamB () const
 
int pdfSetBeamA () const
 
int pdfSetBeamB () const
 
int strategy () const
 Give back weight strategy.
 
int sizeProc () const
 Give back info on processes.
 
int idProcess (int proc) const
 
double xSec (int proc) const
 
double xErr (int proc) const
 
double xMax (int proc) const
 
double xSecSum () const
 
double xErrSum () const
 
void listInit ()
 Print the initialization info; useful to check that setting it worked. More...
 
int idProcess () const
 Give back process number, weight, scale, alpha_em, alpha_s.
 
double weight () const
 
double scale () const
 
double alphaQED () const
 
double alphaQCD () const
 
int sizePart () const
 Give back info on separate particle.
 
int id (int part) const
 
int status (int part) const
 
int mother1 (int part) const
 
int mother2 (int part) const
 
int col1 (int part) const
 
int col2 (int part) const
 
double px (int part) const
 
double py (int part) const
 
double pz (int part) const
 
double e (int part) const
 
double m (int part) const
 
double tau (int part) const
 
double spin (int part) const
 
double scale (int part) const
 
int id1 () const
 Give back info on flavour and x values of hard-process initiators.
 
int id2 () const
 
double x1 () const
 
double x2 () const
 
bool pdfIsSet () const
 Optional: give back info on parton density values of event.
 
int id1pdf () const
 
int id2pdf () const
 
double x1pdf () const
 
double x2pdf () const
 
double scalePDF () const
 
double pdf1 () const
 
double pdf2 () const
 
bool scaleShowersIsSet () const
 Optional: give back info on parton shower scales.
 
double scaleShowers (int i) const
 
void listEvent ()
 Print the info; useful to check that reading an event worked. More...
 
virtual bool skipEvent (int nSkip)
 
bool initLHEF ()
 Write initialization information to a Les Houches Event File. More...
 
bool eventLHEF (bool verbose=true)
 
string getFileName () const
 Get access to the Les Houches Event file name.
 

Public Attributes

HEPRUP heprup
 Some init and event block objects for convenience.
 
HEPEUP hepeup
 
EventeventPtr
 Pointer to event that should be printed.
 
const InfoinfoPtr
 Constant info pointer, explicitly overwrites member from LHAup base class.
 
ParticleDataparticleDataPtr
 

Additional Inherited Members

- Protected Member Functions inherited from LHAup
 LHAup (int strategyIn=3)
 Constructor. Sets default to be that events come with unit weight.
 
void setBeamA (int idIn, double eIn, int pdfGroupIn=0, int pdfSetIn=0)
 Input beam info.
 
void setBeamB (int idIn, double eIn, int pdfGroupIn=0, int pdfSetIn=0)
 
void setStrategy (int strategyIn)
 Input process weight strategy.
 
void addProcess (int idProcIn, double xSecIn=1., double xErrIn=0., double xMaxIn=1.)
 Input process info.
 
void setXSec (int iP, double xSecIn)
 Possibility to update some cross section info at end of run.
 
void setXErr (int iP, double xErrIn)
 
void setXMax (int iP, double xMaxIn)
 
void setProcess (int idProcIn=0, double weightIn=1., double scaleIn=0., double alphaQEDIn=0.0073, double alphaQCDIn=0.12)
 Input info on the selected process. More...
 
void addParticle (LHAParticle particleIn)
 Input particle info, one particle at the time.
 
void addParticle (int idIn, int statusIn=0, int mother1In=0, int mother2In=0, int col1In=0, int col2In=0, double pxIn=0., double pyIn=0., double pzIn=0., double eIn=0., double mIn=0., double tauIn=0., double spinIn=9., double scaleIn=-1.)
 
void setIdX (int id1In, int id2In, double x1In, double x2In)
 Input info on flavour and x values of hard-process initiators.
 
void setPdf (int id1pdfIn, int id2pdfIn, double x1pdfIn, double x2pdfIn, double scalePDFIn, double pdf1In, double pdf2In, bool pdfIsSetIn)
 Optionally input info on parton density values of event.
 
void setScaleShowers (double scaleIn1, double scaleIn2=0.)
 Optionally input info on parton shower starting scale; two for DPS.
 
bool setInitLHEF (istream &is, bool readHeaders=false)
 Three routines for LHEF files, but put here for flexibility. More...
 
bool setNewEventLHEF (istream &is)
 
bool setOldEventLHEF ()
 Make current event information read in by setNewEventLHEF. More...
 
istream * openFile (const char *fn, ifstream &ifs)
 
void closeFile (istream *&is, ifstream &ifs)
 
void setInfoHeader (const string &key, const string &val)
 
- Protected Attributes inherited from LHAup
InfoinfoPtr
 Pointer to various information on the generation.
 
LoggerloggerPtr
 
int nupSave
 Event properties from LHEF files, for repeated use.
 
int idprupSave
 
double xwgtupSave
 
double scalupSave
 
double aqedupSave
 
double aqcdupSave
 
double xSecSumSave
 
double xErrSumSave
 
vector< LHAParticleparticlesSave
 
bool getPDFSave
 
bool getScale
 
bool getScaleShowers
 
int id1InSave
 
int id2InSave
 
int id1pdfInSave
 
int id2pdfInSave
 
double x1InSave
 
double x2InSave
 
double x1pdfInSave
 
double x2pdfInSave
 
double scalePDFInSave
 
double pdf1InSave
 
double pdf2InSave
 
double scaleShowersInSave [2]
 
string fileName
 File to which to write Les Houches Event File information.
 
fstream osLHEF
 
char dateNow [12]
 
char timeNow [9]
 
- Static Protected Attributes inherited from LHAup
static const double CONVERTMB2PB = 1e9
 Allow conversion from mb to pb. More...
 

Detailed Description

A derived class with LHEF 3.0 information read from PYTHIA 8 itself, for output.

Member Function Documentation

bool closeLHEF ( bool  updateInit = false)
virtual

Function to close (and possibly update) the output file.

Write end of a Les Houches Event File and close it.

Write an end to the file.

Optionally update the cross section information.

Done.

Reimplemented from LHAup.

bool openLHEF ( string  fileNameIn)
virtual

Function to open the output file.

LHEF3FromPythia8 class.

Function to open the output file stream.

Open file for writing. Reset it to be empty.

Done.

Reimplemented from LHAup.

bool setEvent ( int  = 0)
virtual

Routine for reading, setting and printing the next event.

Begin filling Les Houches blocks.

The number of particle entries in the current event.

The subprocess code for this event (as given in LPRUP).

The weight for this event.

The PDF weights for the two incoming partons. Note that this variable is not present in the current LesHouches accord (hep-ph/0109068), hopefully it will be present in a future accord.

The scale in GeV used in the calculation of the PDF's in this event.

The value of the QED coupling used in this event.

The value of the QCD coupling used in this event.

Find incoming particles.

Find resonances in hard process.

Find resonances and decay products after showering.

Event for bookkeeping of resonances.

The PDG id's for the particle entries in this event. The status codes for the particle entries in this event. Indices for the first and last mother for the particle entries in this event. The colour-line indices (first(second) is (anti)colour) for the particle entries in this event. Lab frame momentum (Px, Py, Pz, E and M in GeV) for the particle entries in this event. Invariant lifetime (c*tau, distance from production to decay in mm) for the particle entries in this event. Spin info for the particle entries in this event given as the cosine of the angle between the spin vector of a particle and the 3-momentum of the decaying particle, specified in the lab frame.

Attach resonances

Loop through event and attach remaining decays

Done if no daughters exist.

Attach daughters.

End of loop over all entries.

Attach final state particles

Skip resonance decay products.

A pointer to the current HEPRUP object.

The weights associated with this event, as given by the LHAwgt tags.

The weights associated with this event, as given by the LHAweights tags.

Contents of the LHAscales tag

Contents of the LHAweights tag (compressed format)

Contents of the LHArwgt tag (detailed format)

Any other attributes.

Not implemented yet: Write event comments of input LHEF.

Implements LHAup.

bool setInit ( )
virtual

Routine for reading, setting and printing the initialisation info.

Start with clean writer.

PDG id's of beam particles. (first/second is in +/-z direction).

Energy of beam particles given in GeV.

The author group for the PDF used for the beams according to the PDFLib specification.

The id number the PDF used for the beams according to the PDFLib specification.

Master switch indicating how the ME generator envisages the events weights should be interpreted according to the Les Houches accord.

The number of different subprocesses in this file.

The cross sections for the different subprocesses in pb.

The statistical error in the cross sections for the different subprocesses in pb.

The maximum event weights (in HEPEUP::XWGTUP) for different

The subprocess code for the different subprocesses.

Contents of the LHAinitrwgt tag

Contents of the LHAgenerator tags.

A map of the LHAweightgroup tags, indexed by name.

A map of the LHAweight tags, indexed by name.

Get init information.

Not implemented yet: Write header block of input LHEF Write header comments of input LHEF

Print Pythia settings

Not implemented yet: Write init comments of input LHEF.

Done

Implements LHAup.


The documentation for this class was generated from the following files: