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gen::Py8JetGun Class Reference
Inheritance diagram for gen::Py8JetGun:
gen::Py8GunBase gen::Py8InterfaceBase gen::BaseHadronizer

Public Member Functions

const char * classname () const override
 
bool generatePartonsAndHadronize () override
 
 Py8JetGun (edm::ParameterSet const &)
 
 ~Py8JetGun () override
 
- Public Member Functions inherited from gen::Py8GunBase
void evtGenDecay ()
 
void finalizeEvent () override
 
bool initializeForInternalPartons () override
 
 Py8GunBase (edm::ParameterSet const &ps)
 
virtual bool residualDecay ()
 
void setRandomEngine (CLHEP::HepRandomEngine *v)
 
std::vector< std::string > const & sharedResources () const
 
void statistics () override
 
 ~Py8GunBase () override
 
- Public Member Functions inherited from gen::Py8InterfaceBase
bool decay ()
 
bool declareSpecialSettings (const std::vector< std::string > &)
 
bool declareStableParticles (const std::vector< int > &)
 
void makeTmpSLHA (const std::string &)
 
void p8SetRandomEngine (CLHEP::HepRandomEngine *v)
 
 Py8InterfaceBase (edm::ParameterSet const &ps)
 
P8RndmEnginerandomEngine ()
 
bool readSettings (int)
 
 ~Py8InterfaceBase () override
 
- Public Member Functions inherited from gen::BaseHadronizer
 BaseHadronizer (edm::ParameterSet const &ps)
 
void cleanLHE ()
 
void generateLHE (edm::LuminosityBlock const &lumi, CLHEP::HepRandomEngine *rengine, unsigned int ncpu)
 
edm::EventgetEDMEvent () const
 
std::unique_ptr< HepMC::GenEventgetGenEvent ()
 
std::unique_ptr< HepMC3::GenEvent > getGenEvent3 ()
 
std::unique_ptr< GenEventInfoProductgetGenEventInfo ()
 
std::unique_ptr< GenEventInfoProduct3getGenEventInfo3 ()
 
virtual std::unique_ptr< GenLumiInfoHeadergetGenLumiInfoHeader () const
 
GenRunInfoProductgetGenRunInfo ()
 
std::unique_ptr< lhef::LHEEventgetLHEEvent ()
 
const std::shared_ptr< lhef::LHERunInfo > & getLHERunInfo () const
 
unsigned int getVHepMC ()
 
const std::string & gridpackPath () const
 
int randomIndex () const
 
const std::string & randomInitConfigDescription () const
 
void randomizeIndex (edm::LuminosityBlock const &lumi, CLHEP::HepRandomEngine *rengine)
 
void resetEvent (std::unique_ptr< HepMC::GenEvent > event)
 
void resetEvent3 (std::unique_ptr< HepMC3::GenEvent > event3)
 
void resetEventInfo (std::unique_ptr< GenEventInfoProduct > eventInfo)
 
void resetEventInfo3 (std::unique_ptr< GenEventInfoProduct3 > eventInfo)
 
virtual bool select (HepMC::GenEvent *) const
 
void setEDMEvent (edm::Event &event)
 
void setLHEEvent (std::unique_ptr< lhef::LHEEvent > event)
 
void setLHERunInfo (std::unique_ptr< lhef::LHERunInfo > runInfo)
 
void setRandomEngine (CLHEP::HepRandomEngine *v)
 
std::vector< std::string > const & sharedResources () const
 
virtual ~BaseHadronizer () noexcept(false)
 

Private Attributes

double fMaxE
 
double fMaxEta
 
double fMaxP
 
double fMinE
 
double fMinEta
 
double fMinP
 

Additional Inherited Members

- Protected Member Functions inherited from gen::BaseHadronizer
std::unique_ptr< HepMC::GenEvent > & event ()
 
std::unique_ptr< HepMC3::GenEvent > & event3 ()
 
std::unique_ptr< GenEventInfoProduct > & eventInfo ()
 
std::unique_ptr< GenEventInfoProduct3 > & eventInfo3 ()
 
lhef::LHEEventlheEvent ()
 
lhef::LHERunInfolheRunInfo ()
 
GenRunInfoProductrunInfo ()
 
- Protected Attributes inherited from gen::Py8GunBase
double fMaxPhi
 
double fMinPhi
 
std::vector< int > fPartIDs
 
- Protected Attributes inherited from gen::Py8InterfaceBase
HepMC::IO_AsciiParticles * ascii_io
 
std::shared_ptr< Pythia8::EvtGenDecays > evtgenDecays
 
std::string evtgenDecFile
 
std::string evtgenPdlFile
 
std::vector< std::string > evtgenUserFiles
 
std::unique_ptr< Pythia8::Pythia > fDecayer
 
std::unique_ptr< Pythia8::Pythia > fMasterGen
 
edm::ParameterSet fParameters
 
unsigned int maxEventsToPrint
 
bool pythiaHepMCVerbosity
 
bool pythiaHepMCVerbosityParticles
 
unsigned int pythiaPylistVerbosity
 
std::string slhafile_
 
HepMC::Pythia8ToHepMC toHepMC
 
bool useEvtGen
 
- Protected Attributes inherited from gen::BaseHadronizer
unsigned int ivhepmc = 2
 
std::string lheFile_
 
int randomIndex_
 

Detailed Description

Definition at line 11 of file Py8JetGun.cc.

Constructor & Destructor Documentation

◆ Py8JetGun()

gen::Py8JetGun::Py8JetGun ( edm::ParameterSet const &  ps)

Definition at line 31 of file Py8JetGun.cc.

References fMaxE, fMaxEta, fMaxP, fMinE, fMinEta, fMinP, and edm::ParameterSet::getParameter().

31  : Py8GunBase(ps) {
32  // ParameterSet defpset ;
33  edm::ParameterSet pgun_params = ps.getParameter<edm::ParameterSet>("PGunParameters"); // , defpset ) ;
34  fMinEta = pgun_params.getParameter<double>("MinEta"); // ,-2.2);
35  fMaxEta = pgun_params.getParameter<double>("MaxEta"); // , 2.2);
36  fMinP = pgun_params.getParameter<double>("MinP"); // , 0.);
37  fMaxP = pgun_params.getParameter<double>("MaxP"); // , 0.);
38  fMinE = pgun_params.getParameter<double>("MinE"); // , 0.);
39  fMaxE = pgun_params.getParameter<double>("MaxE"); // , 0.);
40  }
T getParameter(std::string const &) const
Definition: ParameterSet.h:307
double fMinEta
Definition: Py8JetGun.cc:21
double fMinE
Definition: Py8JetGun.cc:25
double fMaxP
Definition: Py8JetGun.cc:24
double fMaxE
Definition: Py8JetGun.cc:26
Py8GunBase(edm::ParameterSet const &ps)
Definition: Py8GunBase.cc:15
double fMinP
Definition: Py8JetGun.cc:23
double fMaxEta
Definition: Py8JetGun.cc:22

◆ ~Py8JetGun()

gen::Py8JetGun::~Py8JetGun ( )
inlineoverride

Definition at line 14 of file Py8JetGun.cc.

14 {}

Member Function Documentation

◆ classname()

const char * gen::Py8JetGun::classname ( ) const
overridevirtual

Implements gen::Py8InterfaceBase.

Definition at line 120 of file Py8JetGun.cc.

120 { return "Py8JetGun"; }

◆ generatePartonsAndHadronize()

bool gen::Py8JetGun::generatePartonsAndHadronize ( )
overridevirtual

Implements gen::Py8InterfaceBase.

Definition at line 42 of file Py8JetGun.cc.

References mps_setup::append, funct::cos(), PVValHelper::eta, gen::BaseHadronizer::event(), JetChargeProducer_cfi::exp, gen::P8RndmEngine::flat(), gen::Py8InterfaceBase::fMasterGen, fMaxE, fMaxEta, fMaxP, gen::Py8GunBase::fMaxPhi, fMinE, fMinEta, fMinP, gen::Py8GunBase::fMinPhi, gen::Py8GunBase::fPartIDs, mps_fire::i, CrabHelper::log, M_PI, EgHLTOffHistBins_cfi::mass, EgammaObjectsElectrons_cfi::particleID, multPhiCorr_741_25nsDY_cfi::px, multPhiCorr_741_25nsDY_cfi::py, gen::Py8InterfaceBase::randomEngine(), funct::sin(), mathSSE::sqrt(), metsig::tau, and gen::Py8InterfaceBase::toHepMC.

42  {
43  fMasterGen->event.reset();
44 
45  int NTotParticles = fPartIDs.size();
46 
47  // energy below is dummy, it is not used
48  (fMasterGen->event).append(990, -11, 0, 0, 2, 1 + NTotParticles, 0, 0, 0., 0., 0., 15000., 15000.);
49 
50  double totPx = 0.;
51  double totPy = 0.;
52  double totPz = 0.;
53  double totE = 0.;
54  double totM = 0.;
55  double phi, eta, the, ee, pp;
56 
57  for (size_t i = 0; i < fPartIDs.size(); i++) {
58  int particleID = fPartIDs[i]; // this is PDG
59 
60  phi = 2. * M_PI * randomEngine().flat();
61  the = acos(-1. + 2. * randomEngine().flat());
62 
63  // from input
64  //
65  ee = (fMaxE - fMinE) * randomEngine().flat() + fMinE;
66 
67  double mass = (fMasterGen->particleData).m0(particleID);
68 
69  pp = sqrt(ee * ee - mass * mass);
70 
71  double px = pp * sin(the) * cos(phi);
72  double py = pp * sin(the) * sin(phi);
73  double pz = pp * cos(the);
74 
75  if (!((fMasterGen->particleData).isParticle(particleID))) {
76  particleID = std::fabs(particleID);
77  }
78  (fMasterGen->event).append(particleID, 1, 1, 0, 0, 0, 0, 0, px, py, pz, ee, mass);
79  int eventSize = (fMasterGen->event).size() - 1;
80  // -log(flat) = exponential distribution
81  double tauTmp = -(fMasterGen->event)[eventSize].tau0() * log(randomEngine().flat());
82  (fMasterGen->event)[eventSize].tau(tauTmp);
83 
84  // values for computing total mass
85  //
86  totPx += px;
87  totPy += py;
88  totPz += pz;
89  totE += ee;
90  }
91 
92  totM = sqrt(totE * totE - (totPx * totPx + totPy * totPy + totPz * totPz));
93 
94  //now the boost (from input params)
95  //
96  pp = (fMaxP - fMinP) * randomEngine().flat() + fMinP;
97  ee = sqrt(totM * totM + pp * pp);
98 
99  //the boost direction (from input params)
100  //
101  phi = (fMaxPhi - fMinPhi) * randomEngine().flat() + fMinPhi;
102  eta = (fMaxEta - fMinEta) * randomEngine().flat() + fMinEta;
103  the = 2. * atan(exp(-eta));
104 
105  double betaX = pp / ee * std::sin(the) * std::cos(phi);
106  double betaY = pp / ee * std::sin(the) * std::sin(phi);
107  double betaZ = pp / ee * std::cos(the);
108 
109  // boost all particles
110  //
111  (fMasterGen->event).bst(betaX, betaY, betaZ);
112 
113  if (!fMasterGen->next())
114  return false;
115 
116  event() = std::make_unique<HepMC::GenEvent>();
117  return toHepMC.fill_next_event(fMasterGen->event, event().get());
118  }
size
Write out results.
double fMinEta
Definition: Py8JetGun.cc:21
double fMinE
Definition: Py8JetGun.cc:25
Sin< T >::type sin(const T &t)
Definition: Sin.h:22
double fMinPhi
Definition: Py8GunBase.h:58
double fMaxP
Definition: Py8JetGun.cc:24
double flat() override
Definition: P8RndmEngine.cc:7
double fMaxE
Definition: Py8JetGun.cc:26
T sqrt(T t)
Definition: SSEVec.h:23
Cos< T >::type cos(const T &t)
Definition: Cos.h:22
std::unique_ptr< HepMC::GenEvent > & event()
std::vector< int > fPartIDs
Definition: Py8GunBase.h:57
#define M_PI
P8RndmEngine & randomEngine()
double fMaxPhi
Definition: Py8GunBase.h:59
HepMC::Pythia8ToHepMC toHepMC
std::unique_ptr< Pythia8::Pythia > fMasterGen
double fMinP
Definition: Py8JetGun.cc:23
double fMaxEta
Definition: Py8JetGun.cc:22
Definition: event.py:1

Member Data Documentation

◆ fMaxE

double gen::Py8JetGun::fMaxE
private

Definition at line 26 of file Py8JetGun.cc.

Referenced by generatePartonsAndHadronize(), and Py8JetGun().

◆ fMaxEta

double gen::Py8JetGun::fMaxEta
private

Definition at line 22 of file Py8JetGun.cc.

Referenced by generatePartonsAndHadronize(), and Py8JetGun().

◆ fMaxP

double gen::Py8JetGun::fMaxP
private

Definition at line 24 of file Py8JetGun.cc.

Referenced by generatePartonsAndHadronize(), and Py8JetGun().

◆ fMinE

double gen::Py8JetGun::fMinE
private

Definition at line 25 of file Py8JetGun.cc.

Referenced by generatePartonsAndHadronize(), and Py8JetGun().

◆ fMinEta

double gen::Py8JetGun::fMinEta
private

Definition at line 21 of file Py8JetGun.cc.

Referenced by generatePartonsAndHadronize(), and Py8JetGun().

◆ fMinP

double gen::Py8JetGun::fMinP
private

Definition at line 23 of file Py8JetGun.cc.

Referenced by generatePartonsAndHadronize(), and Py8JetGun().