Creates a list of all the interactions that can be generated by the RES thread (generates semi-inclusive resonance reactions). Concrete implementations of the InteractionListGeneratorI interface. More...

#include <RESInteractionListGenerator.h>

Inheritance diagram for genie::RESInteractionListGenerator:

Public Member Functions
	RESInteractionListGenerator ()

	RESInteractionListGenerator (string config)

	~RESInteractionListGenerator ()

InteractionList *	CreateInteractionList (const InitialState &init) const

void	Configure (const Registry &config)

void	Configure (string config)

Public Member Functions inherited from genie::Algorithm
virtual	~Algorithm ()

virtual void	FindConfig (void)

virtual const Registry &	GetConfig (void) const

Registry *	GetOwnedConfig (void)

virtual const AlgId &	Id (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 Algorithm *	SubAlg (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	LoadConfigData (void)

Private Attributes
bool	fIsCC

bool	fIsNC

bool	fIsEM

BaryonResList	fResList

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)

Protected Member Functions inherited from genie::InteractionListGeneratorI
	InteractionListGeneratorI ()

	InteractionListGeneratorI (string name)

	InteractionListGeneratorI (string name, string config)

	~InteractionListGeneratorI ()

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)

Registry *	ExtractLocalConfig (const Registry &in) const

Registry *	ExtractLowerConfig (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

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::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...

AlgMap *	fOwnedSubAlgMp
	local pool for owned sub-algs (taken out of the factory pool) More...

Detailed Description

Creates a list of all the interactions that can be generated by the RES thread (generates semi-inclusive resonance reactions). Concrete implementations of the InteractionListGeneratorI interface.

Author: Costas Andreopoulos <constantinos.andreopoulos cern.ch> University of Liverpool & STFC Rutherford Appleton Laboratory

May 13, 2005

Definition at line 28 of file RESInteractionListGenerator.h.

Constructor & Destructor Documentation

RESInteractionListGenerator::RESInteractionListGenerator ( )

Definition at line 23 of file RESInteractionListGenerator.cxx.

                                                          :
 InteractionListGeneratorI("genie::RESInteractionListGenerator")
 {
 
 }

RESInteractionListGenerator::RESInteractionListGenerator ( string config )

Definition at line 29 of file RESInteractionListGenerator.cxx.

                                                                       :
 InteractionListGeneratorI("genie::RESInteractionListGenerator", config)
 {
 
 }

RESInteractionListGenerator::~RESInteractionListGenerator ( )

Definition at line 35 of file RESInteractionListGenerator.cxx.

 {
 
 }

Member Function Documentation

void RESInteractionListGenerator::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 142 of file RESInteractionListGenerator.cxx.

 {
   Algorithm::Configure(config);
   this->LoadConfigData();
 }

void RESInteractionListGenerator::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 148 of file RESInteractionListGenerator.cxx.

 {
   Algorithm::Configure(config);
   this->LoadConfigData();
 }

InteractionList * RESInteractionListGenerator::CreateInteractionList ( const InitialState & init ) const

virtual

Implements genie::InteractionListGeneratorI.

Definition at line 40 of file RESInteractionListGenerator.cxx.

 {
   LOG("IntLst", pINFO) << "InitialState = " << init_state.AsString();
 
   // In the thread generating interactions from the list produced here (RES),
   // we simulate (for free and nuclear targets) semi-inclusive resonance
   // interactions: v + N -> v(l) + R -> v(l) + X
   // Specifically, the RES thread generates:
   //
   //  CC:
   //    nu       + p (A) -> l-       R (A), for all resonances with Q=+2
   //    nu       + n (A) -> l-       R (A), for all resonances with Q=+1
   //    \bar{nu} + p (A) -> l+       R (A), for all resonances with Q= 0
   //    \bar{nu} + n (A) -> l+       R (A), for all resonances with Q=-1
   //  NC:
   //    nu       + p (A) -> nu       R (A), for all resonances with Q=+1
   //    nu       + n (A) -> nu       R (A), for all resonances with Q= 0
   //    \bar{nu} + p (A) -> \bar{nu} R (A), for all resonances with Q=+1
   //    \bar{nu} + n (A) -> \bar{nu} R (A), for all resonances with Q= 0
   //
   // and then the resonance R should be allowed to decay to get the full
   // hadronic final state X. All decay channels kinematically accessible
   // to the (off the mass-shell produced) resonance can be allowed.
 
   // specify the requested interaction type
   InteractionType_t inttype;
   if      (fIsCC) inttype = kIntWeakCC;
   else if (fIsNC) inttype = kIntWeakNC;
   else if (fIsEM) inttype = kIntEM;
   else {
      LOG("IntLst", pWARN)
        << "Unknown InteractionType! Returning NULL InteractionList "
        << "for init-state: " << init_state.AsString();
      return 0;
   }
 
   // create a process information object
   ProcessInfo proc_info(kScResonant, inttype);
 
   // learn whether the input nuclear or free target has avail. p and n
   const Target & inp_target = init_state.Tgt();
   bool hasP = (inp_target.Z() > 0);
   bool hasN = (inp_target.N() > 0);
 
   // possible hit nucleons
   const int hit_nucleon[2] = {kPdgProton, kPdgNeutron};
 
   // create an interaction list
   InteractionList * intlist = new InteractionList;
 
   // loop over all baryon resonances considered in current MC job
   unsigned int nres = fResList.NResonances();
   for(unsigned int ires = 0; ires < nres; ires++) {
 
      //get current resonance
      Resonance_t res = fResList.ResonanceId(ires);
 
      // loop over hit nucleons
      for(int i=0; i<2; i++) {
 
        // proceed only if the hit nucleon exists in the current init state
        if(hit_nucleon[i]==kPdgProton  && !hasP) continue;
        if(hit_nucleon[i]==kPdgNeutron && !hasN) continue;
 
        // proceed only if the current resonance conserves charge
        // (the only problematic case is when the RES charge has to be +2
        //  because then only Delta resonances are possible)
        bool skip_res =  proc_info.IsWeakCC() &&
                         pdg::IsNeutrino(init_state.ProbePdg()) &&
                         (hit_nucleon[i]==kPdgProton) &&
                         (!utils::res::IsDelta(res));
        if(skip_res) continue;
 
        // create an interaction
        Interaction * interaction = new Interaction(init_state, proc_info);
 
        // add the struck nucleon
        Target * target = interaction->InitStatePtr()->TgtPtr();
        target->SetHitNucPdg(hit_nucleon[i]);
 
        // add the baryon resonance in the exclusive tag
        XclsTag * xcls = interaction->ExclTagPtr();
        xcls->SetResonance(res);
 
        // add the interaction at the interaction list
        intlist->push_back(interaction);
 
      }//hit nucleons
   } //resonances
 
   if(intlist->size() == 0) {
      LOG("IntLst", pERROR)
        << "Returning NULL InteractionList for init-state: "
        << init_state.AsString();
      delete intlist;
      return 0;
   }
 
   return intlist;
 }

void RESInteractionListGenerator::LoadConfigData ( void )

private

Definition at line 154 of file RESInteractionListGenerator.cxx.

 {
   string resonances = "";
   this->GetParam("ResonanceNameList", resonances);
   SLOG("IntLst", pDEBUG) << "Resonance list: " << resonances;
 
   fResList.Clear();
   fResList.DecodeFromNameList(resonances);
   LOG("IntLst", pDEBUG) << fResList;
 
   this->GetParamDef("is-CC", fIsCC, false);
   this->GetParamDef("is-NC", fIsNC, false);
   this->GetParamDef("is-EM", fIsEM, false);
 }