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genie::RESHadronicSystemGenerator Class Reference

Generates the 'final state' hadronic system in v RES interactions. It adds the remnant nucleus (if any), the pre-selected resonance and the resonance decay products at the GHEP record. Unlike the SPP thread, in the RES thread the resonance is specified at the time an interaction is selected but its decay products not (semi-inclusive resonance reactions). The off the mass-shell baryon resonance is decayed using a phase space generator. All kinematically available decay channels are being used (not just 1 pi channels). Is a concrete implementation of the EventRecordVisitorI interface. More...

#include <RESHadronicSystemGenerator.h>

Inheritance diagram for genie::RESHadronicSystemGenerator:
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Public Member Functions

 RESHadronicSystemGenerator ()
 
 RESHadronicSystemGenerator (string config)
 
 ~RESHadronicSystemGenerator ()
 
void ProcessEventRecord (GHepRecord *event_rec) const
 
void Configure (const Registry &config)
 
void Configure (string config)
 
- Public Member Functions inherited from genie::HadronicSystemGenerator
void AddTargetNucleusRemnant (GHepRecord *event_rec) const
 
void AddFinalHadronicSyst (GHepRecord *event_rec) const
 
void PreHadronTransportDecays (GHepRecord *event_rec) const
 
TLorentzVector Hadronic4pLAB (GHepRecord *event_rec) const
 
TLorentzVector MomentumTransferLAB (GHepRecord *event_rec) const
 
TVector3 HCM2LAB (GHepRecord *event_rec) const
 
int HadronShowerCharge (GHepRecord *event_rec) const
 
int ResonanceCharge (GHepRecord *event_rec) const
 
- Public Member Functions inherited from genie::EventRecordVisitorI
virtual ~EventRecordVisitorI ()
 
- Public Member Functions inherited from genie::Algorithm
virtual ~Algorithm ()
 
virtual void FindConfig (void)
 
virtual const RegistryGetConfig (void) const
 
RegistryGetOwnedConfig (void)
 
virtual const AlgIdId (void) const
 Get algorithm ID. More...
 
virtual AlgStatus_t GetStatus (void) const
 Get algorithm status. More...
 
virtual bool AllowReconfig (void) const
 
virtual AlgCmp_t Compare (const Algorithm *alg) const
 Compare with input algorithm. More...
 
virtual void SetId (const AlgId &id)
 Set algorithm ID. More...
 
virtual void SetId (string name, string config)
 
const AlgorithmSubAlg (const RgKey &registry_key) const
 
void AdoptConfig (void)
 
void AdoptSubstructure (void)
 
virtual void Print (ostream &stream) const
 Print algorithm info. More...
 

Private Member Functions

void LoadConfig (void)
 
int GetResonancePdgCode (GHepRecord *evrec) const
 
void AddResonance (GHepRecord *evrec, int pdgc) const
 

Private Attributes

const EventRecordVisitorIfResonanceDecayer
 

Additional Inherited Members

- Static Public Member Functions inherited from genie::Algorithm
static string BuildParamVectKey (const std::string &comm_name, unsigned int i)
 
static string BuildParamVectSizeKey (const std::string &comm_name)
 
static string BuildParamMatKey (const std::string &comm_name, unsigned int i, unsigned int j)
 
static string BuildParamMatRowSizeKey (const std::string &comm_name)
 
static string BuildParamMatColSizeKey (const std::string &comm_name)
 
- Protected Member Functions inherited from genie::HadronicSystemGenerator
 HadronicSystemGenerator ()
 
 HadronicSystemGenerator (string name)
 
 HadronicSystemGenerator (string name, string config)
 
 ~HadronicSystemGenerator ()
 
- Protected Member Functions inherited from genie::EventRecordVisitorI
 EventRecordVisitorI ()
 
 EventRecordVisitorI (string name)
 
 EventRecordVisitorI (string name, string config)
 
- Protected Member Functions inherited from genie::Algorithm
 Algorithm ()
 
 Algorithm (string name)
 
 Algorithm (string name, string config)
 
void Initialize (void)
 
void DeleteConfig (void)
 
void DeleteSubstructure (void)
 
RegistryExtractLocalConfig (const Registry &in) const
 
RegistryExtractLowerConfig (const Registry &in, const string &alg_key) const
 Split an incoming configuration Registry into a block valid for the sub-algo identified by alg_key. More...
 
template<class T >
bool GetParam (const RgKey &name, T &p, bool is_top_call=true) const
 
template<class T >
bool GetParamDef (const RgKey &name, T &p, const T &def) const
 
template<class T >
int GetParamVect (const std::string &comm_name, std::vector< T > &v, bool is_top_call=true) const
 Handle to load vectors of parameters. More...
 
int GetParamVectKeys (const std::string &comm_name, std::vector< RgKey > &k, bool is_top_call=true) const
 
template<class T >
int GetParamMat (const std::string &comm_name, TMatrixT< T > &mat, bool is_top_call=true) const
 Handle to load matrix of parameters. More...
 
template<class T >
int GetParamMatSym (const std::string &comm_name, TMatrixTSym< T > &mat, bool is_top_call=true) const
 
int GetParamMatKeys (const std::string &comm_name, std::vector< RgKey > &k, bool is_top_call=true) const
 
int AddTopRegistry (Registry *rp, bool owns=true)
 add registry with top priority, also update ownership More...
 
int AddLowRegistry (Registry *rp, bool owns=true)
 add registry with lowest priority, also update ownership More...
 
int MergeTopRegistry (const Registry &r)
 
int AddTopRegisties (const vector< Registry * > &rs, bool owns=false)
 Add registries with top priority, also udated Ownerships. More...
 
- Protected Attributes inherited from genie::HadronicSystemGenerator
const EventRecordVisitorIfPreINukeDecayer
 
- Protected Attributes inherited from genie::Algorithm
bool fAllowReconfig
 
bool fOwnsSubstruc
 true if it owns its substructure (sub-algs,...) More...
 
AlgId fID
 algorithm name and configuration set More...
 
vector< Registry * > fConfVect
 
vector< bool > fOwnerships
 ownership for every registry in fConfVect More...
 
AlgStatus_t fStatus
 algorithm execution status More...
 
AlgMapfOwnedSubAlgMp
 local pool for owned sub-algs (taken out of the factory pool) More...
 

Detailed Description

Generates the 'final state' hadronic system in v RES interactions. It adds the remnant nucleus (if any), the pre-selected resonance and the resonance decay products at the GHEP record. Unlike the SPP thread, in the RES thread the resonance is specified at the time an interaction is selected but its decay products not (semi-inclusive resonance reactions). The off the mass-shell baryon resonance is decayed using a phase space generator. All kinematically available decay channels are being used (not just 1 pi channels). Is a concrete implementation of the EventRecordVisitorI interface.

Author
Costas Andreopoulos <c.andreopoulos cern.ch> University of Liverpool
Created:
November 23, 2004
License:
Copyright (c) 2003-2024, The GENIE Collaboration For the full text of the license visit http://copyright.genie-mc.org

Definition at line 35 of file RESHadronicSystemGenerator.h.

Constructor & Destructor Documentation

RESHadronicSystemGenerator::RESHadronicSystemGenerator ( )

Definition at line 41 of file RESHadronicSystemGenerator.cxx.

41  :
42 HadronicSystemGenerator("genie::RESHadronicSystemGenerator")
43 {
44 
45 }
RESHadronicSystemGenerator::RESHadronicSystemGenerator ( string  config)

Definition at line 47 of file RESHadronicSystemGenerator.cxx.

47  :
48 HadronicSystemGenerator("genie::RESHadronicSystemGenerator", config)
49 {
50 
51 }
RESHadronicSystemGenerator::~RESHadronicSystemGenerator ( )

Definition at line 53 of file RESHadronicSystemGenerator.cxx.

54 {
55 
56 }

Member Function Documentation

void RESHadronicSystemGenerator::AddResonance ( GHepRecord evrec,
int  pdgc 
) const
private

Definition at line 106 of file RESHadronicSystemGenerator.cxx.

References genie::GHepRecord::AddParticle(), genie::HadronicSystemGenerator::Hadronic4pLAB(), genie::GHepRecord::HitNucleonPosition(), genie::kIStPreDecayResonantState, genie::GHepRecord::Probe(), and genie::GHepParticle::X4().

Referenced by ProcessEventRecord().

108 {
109  //-- Compute RES p4 = p4(neutrino) + p4(hit nucleon) - p4(primary lepton)
110  TLorentzVector p4 = this->Hadronic4pLAB(evrec);
111 
112  //-- Add the resonance at the EventRecord
114  int mom = evrec->HitNucleonPosition();
115 
116  //-- Get vtx position
117  GHepParticle * neutrino = evrec->Probe();
118  const TLorentzVector & vtx = *(neutrino->X4());
119 
120  evrec->AddParticle(pdgc, ist, mom,-1,-1,-1, p4, vtx);
121 }
TLorentzVector Hadronic4pLAB(GHepRecord *event_rec) const
virtual int HitNucleonPosition(void) const
Definition: GHepRecord.cxx:418
virtual GHepParticle * Probe(void) const
Definition: GHepRecord.cxx:284
const TLorentzVector * X4(void) const
Definition: GHepParticle.h:79
virtual void AddParticle(const GHepParticle &p)
Definition: GHepRecord.cxx:499
STDHEP-like event record entry that can fit a particle or a nucleus.
Definition: GHepParticle.h:39
enum genie::EGHepStatus GHepStatus_t
void RESHadronicSystemGenerator::Configure ( const Registry config)
virtual

Configure the algorithm with an external registry The registry is merged with the top level registry if it is owned, Otherwise a copy of it is added with the highest priority

Reimplemented from genie::Algorithm.

Definition at line 207 of file RESHadronicSystemGenerator.cxx.

References genie::Algorithm::Configure(), and LoadConfig().

208 {
209  Algorithm::Configure(config);
210  this->LoadConfig();
211 }
virtual void Configure(const Registry &config)
Definition: Algorithm.cxx:62
void RESHadronicSystemGenerator::Configure ( string  config)
virtual

Configure the algorithm from the AlgoConfigPool based on param_set string given in input An algorithm contains a vector of registries coming from different xml configuration files, which are loaded according a very precise prioriy This methods will load a number registries in order of priority: 1) "Tunable" parameter set from CommonParametes. This is loaded with the highest prioriry and it is designed to be used for tuning procedure Usage not expected from the user. 2) For every string defined in "CommonParame" the corresponding parameter set will be loaded from CommonParameter.xml 3) parameter set specified by the config string and defined in the xml file of the algorithm 4) if config is not "Default" also the Default parameter set from the same xml file will be loaded Effectively this avoids the repetion of a parameter when it is not changed in the requested configuration

Reimplemented from genie::Algorithm.

Definition at line 213 of file RESHadronicSystemGenerator.cxx.

References genie::Algorithm::Configure(), and LoadConfig().

214 {
215  Algorithm::Configure(config);
216  this->LoadConfig();
217 }
virtual void Configure(const Registry &config)
Definition: Algorithm.cxx:62
int RESHadronicSystemGenerator::GetResonancePdgCode ( GHepRecord evrec) const
private

Definition at line 82 of file RESHadronicSystemGenerator.cxx.

References genie::Interaction::ExclTag(), genie::XclsTag::KnownResonance(), LOG, genie::utils::res::PdgCode(), pNOTICE, genie::XclsTag::Resonance(), genie::HadronicSystemGenerator::ResonanceCharge(), and genie::GHepRecord::Summary().

Referenced by ProcessEventRecord().

83 {
84 // In the RES thread the resonance is specifed when selecting interaction
85 // This method adds it to the GHEP record.
86 
87  Interaction * interaction = evrec->Summary();
88 
89  // Get resonance id
90  const XclsTag & xcls = interaction->ExclTag();
91  assert(xcls.KnownResonance());
92  Resonance_t res = xcls.Resonance();
93 
94  // Get resonance charge
95  int q_res = this->ResonanceCharge(evrec);
96 
97  // Find resonance PDG code from resonance charge and id
98  int pdgc = utils::res::PdgCode(res, q_res);
99 
100  LOG("RESHadronicVtx", pNOTICE)
101  << "Selected event has RES with PDGC = " << pdgc << ", Q = " << q_res;
102 
103  return pdgc;
104 }
virtual Interaction * Summary(void) const
Definition: GHepRecord.cxx:91
bool KnownResonance(void) const
Definition: XclsTag.h:68
enum genie::EResonance Resonance_t
Contains minimal information for tagging exclusive processes.
Definition: XclsTag.h:39
Summary information for an interaction.
Definition: Interaction.h:56
int PdgCode(Resonance_t res, int Q)
(resonance id, charge) -&gt; PDG code
#define LOG(stream, priority)
A macro that returns the requested log4cpp::Category appending a string (using the FILE...
Definition: Messenger.h:96
Resonance_t Resonance(void) const
Definition: XclsTag.h:69
const XclsTag & ExclTag(void) const
Definition: Interaction.h:72
int ResonanceCharge(GHepRecord *event_rec) const
#define pNOTICE
Definition: Messenger.h:61
void RESHadronicSystemGenerator::LoadConfig ( void  )
private

Definition at line 219 of file RESHadronicSystemGenerator.cxx.

References fResonanceDecayer, and genie::Algorithm::SubAlg().

Referenced by Configure().

220 {
221  fResonanceDecayer = 0;
222  //fPreINukeDecayer = 0;
223 
224  // Get the specified decayers
226  dynamic_cast<const EventRecordVisitorI *> (this->SubAlg("Decayer"));
227  assert(fResonanceDecayer);
228  // fPreINukeDecayer =
229  // dynamic_cast<const EventRecordVisitorI *> (this->SubAlg("PreTransportDecayer"));
230  // assert(fPreINukeDecayer);
231 }
Defines the EventRecordVisitorI interface. Concrete implementations of this interface use the &#39;Visito...
const EventRecordVisitorI * fResonanceDecayer
const Algorithm * SubAlg(const RgKey &registry_key) const
Definition: Algorithm.cxx:345
void RESHadronicSystemGenerator::ProcessEventRecord ( GHepRecord event_rec) const
virtual

Implements genie::EventRecordVisitorI.

Definition at line 58 of file RESHadronicSystemGenerator.cxx.

References AddResonance(), fResonanceDecayer, GetResonancePdgCode(), and genie::EventRecordVisitorI::ProcessEventRecord().

59 {
60 // This method generates the final state hadronic system
61 
62  // Get the right resonance PDG code so that the selected resonance
63  // conserves charge
64  int pdgc = GetResonancePdgCode(evrec);
65 
66  // Add the selected resonance
67  this->AddResonance(evrec,pdgc);
68 
69  // Decay the resonance (and its decay products, if they include resonances)
71 
72  // Add the baryon resonance decay products at the event record
73  //this->AddResonanceDecayProducts(evrec,pdgc);
74 
75  // Handle resonance decay channels to other resonances or short-living
76  // partices
77  //LOG("RESHadronicVtx", pNOTICE)
78  // << "Decay any resonance in the initial resonance decay products";
79  //this->PreHadronTransportDecays(evrec);
80 }
const EventRecordVisitorI * fResonanceDecayer
int GetResonancePdgCode(GHepRecord *evrec) const
void AddResonance(GHepRecord *evrec, int pdgc) const
virtual void ProcessEventRecord(GHepRecord *event_rec) const =0

Member Data Documentation

const EventRecordVisitorI* genie::RESHadronicSystemGenerator::fResonanceDecayer
private

Definition at line 57 of file RESHadronicSystemGenerator.h.

Referenced by LoadConfig(), and ProcessEventRecord().


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