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PYTHIA
8.312
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A derived class from LHAup which generates events with HelacOnia. More...
#include <LHAHelaconia.h>
Public Member Functions | |
| LHAupHelaconia (Pythia *pythiaIn, string dirIn="helaconiarun", string exeIn="ho_cluster") | |
| Constructor. | |
| ~LHAupHelaconia () | |
| Destructor. More... | |
| bool | readString (string line) |
| Read a HelacOnia command string. More... | |
| void | setEvents (int eventsIn) |
| Set the number of events to generate per run. More... | |
| bool | setSeed (int seedIn, int runsIn=30081) |
| Set the random seed and maximum runs. More... | |
| bool | setInit () |
| Set the initialization information. More... | |
| bool | setEvent (int=0) |
| Set the event information. More... | |
| bool | execute (string line) |
| Execute a system command. More... | |
| bool | run (int eventsIn, int seedIn=-1) |
| Run HelacOnia. More... | |
| bool | reader (bool init) |
| Create the LHEF reader. More... | |
| int | convert (int idIn) |
| Convert the color octet HelacOnia ID to a Pythia 8 ID. | |
| void | errorMsg (string messageIn) |
| Print a message the first few times. Insert in database. 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) |
| virtual bool | openLHEF (string fileNameIn) |
| Four routines to write a Les Houches Event file in steps. More... | |
| virtual bool | closeLHEF (bool updateInit=false) |
| Write end of a Les Houches Event File and close it. More... | |
| 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. | |
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 | |
| Info * | infoPtr |
| Pointer to various information on the generation. | |
| Logger * | loggerPtr |
| 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< LHAParticle > | particlesSave |
| 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... | |
A derived class from LHAup which generates events with HelacOnia.
This class automatically generates hard processes with HelacOnia and reads in the LHEF file output. The user can send commands to HelacOnia via the readString method. The launch command, random seed, and shower choice are automatically handled. For example, the following will produce J/psi events from 13 TeV proton proton collisions: readString("generate u u~ > cc~(3S11) g") The number of events generated per HelacOnia run is controlled by setEvents, while the random seed is controlled by setSeed.
| ~LHAupHelaconia | ( | ) |
Destructor.
Destructor: Print error statistics before exiting. Printing code basically copied from Info class.
Header.
Loop over all messages
Message printout.
Done.
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inline |
Print a message the first few times. Insert in database.
Recover number of times message occured. Also inserts new string.
Print message the first few times.
| bool execute | ( | string | line | ) |
Execute a system command.
Note: The functions below have been made public to ease the generation of Python bindings. protected:
| bool reader | ( | bool | init | ) |
Create the LHEF reader.
Check valid LHE file.
Determine the cross-section (if needed).
Set the info.
| bool readString | ( | string | line | ) |
Read a HelacOnia command string.
The special command "set state = <pid>" is not passed to HelacOnia, but rather is used to set the color singlet state being produced from the color octet state (if a color octet state is being produced). If color octet production is enabled then the appropriate quark mass is modified to half the mass of the color octet state plus the color octet mass splitting.
| bool run | ( | int | eventsIn, |
| int | seedIn = -1 |
||
| ) |
Run HelacOnia.
Set up run and seed.
Determine the heavy quark mass.
Write the generation file.
Create the event shuffler.
Execute the run commands.
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virtual |
Set the event information.
Run setEvent from the LHEF object and launch HelacOnia if failed.
Read the event from the LHEF object.
Write the event.
Implements LHAup.
| void setEvents | ( | int | eventsIn | ) |
Set the number of events to generate per run.
Set the number of events to generate per HelacOnia run; default is 10000.
|
virtual |
| bool setSeed | ( | int | seedIn, |
| int | runsIn = 30081 |
||
| ) |
Set the random seed and maximum runs.
Set the random seed and maximum allowed runs.
If the random seed is negative (default of -1), then the HelacOnia seed is taken as the Pythia parameter "Random:seed", which must be greater than 0. If the maximum number of allowed runs is exceeded (default of 30081) an error is thrown. The seed for a HelacOnia run is set as: (random seed - 1) * (maximum runs) + (number of runs) + 1 HelacOnia can only handle random seeds up to 30081 * 30081. So, with this strategy, one can generate Pythia jobs with seeds from 0 to 30081, with each job running HelacOnia less than 30081 times, and ensure a fully statistically independent sample. If more than 30081 jobs are needed, then the maximum allowed runs can be lowered accordingly, and if need be, setEvents can be used to increase the number of events generated per run.
1.8.11
