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Added additional GENIE info to LoadReweightGenieEvent including FS PD…
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…Gs and momentum, energy and momentum transfer, bjorken x, elasticity y, and target nuclei (#281)

Co-authored-by: James Minock <[email protected]>
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jminock and James Minock authored Nov 11, 2024
1 parent 5730477 commit 339ad78
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Showing 2 changed files with 70 additions and 17 deletions.
78 changes: 61 additions & 17 deletions UserTools/LoadReweightGenieEvent/LoadReweightGenieEvent.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -555,6 +555,10 @@ bool LoadReweightGenieEvent::Execute(){
neutcode=thegenieinfo.neutinteractioncode; // currently disabled to prevent excessive verbosity

eventq2=thegenieinfo.Q2; //MeV
eventw2=thegenieinfo.W2; //MeV
eventbj_x = thegenieinfo.x;
eventelastic_y = thegenieinfo.y;
TrueTargetZ = thegenieinfo.targetnucleusZ;
eventEnu=thegenieinfo.probeenergy; //MeV
eventPnu=thegenieinfo.probethreemomentum; //MeV
neutrinopdg=thegenieinfo.probepdg;
Expand Down Expand Up @@ -706,6 +710,14 @@ bool LoadReweightGenieEvent::Execute(){
geniestore->Set("NuVtxInTank",isintank);
geniestore->Set("NuVtxInFidVol",isinfiducialvol);
geniestore->Set("EventQ2",eventq2);
geniestore->Set("EventW2",eventw2);
geniestore->Set("EventBjx",eventbj_x);
geniestore->Set("Eventy",eventelastic_y);
geniestore->Set("TargetZ",TrueTargetZ);
geniestore->Set("Eventq0",eventq0);
geniestore->Set("Eventq3",eventq3);
geniestore->Set("pdg_vector", pdgs);
geniestore->Set("Pmag_vector",Pmag);
geniestore->Set("NeutrinoEnergy",eventEnu);
geniestore->Set("NeutrinoMomentum",eventPnu);
geniestore->Set("NeutrinoPDG",neutrinopdg);
Expand Down Expand Up @@ -739,6 +751,8 @@ bool LoadReweightGenieEvent::Execute(){

Log("Tool LoadReweightGenieEvent: Clearing genieintx",v_debug,verbosity);
genieintx->Clear(); // REQUIRED TO PREVENT MEMORY LEAK
pdgs.clear();
Pmag.clear();

Log("Tool LoadReweightGenieEvent: done",v_debug,verbosity);
return true;
Expand Down Expand Up @@ -925,44 +939,66 @@ void LoadReweightGenieEvent::GetGenieEntryInfo(genie::EventRecord* gevtRec, geni
genie::GHepParticle * p = 0;

//Loop over event particles
/// Kolanoski, Hermann, and Norbert Wermes, Particle Detectors: Fundamentals and Applications
// (Oxford, 2020; online edn, Oxford Academic, 17 Sept. 2020),
/// https://doi.org/10.1093/oso/9780198858362.001.0001, accessed 15 Aug. 2024.
// Using the equation P_th = Mass[GeV/C] / sqrt(n^2-1), where "n" is the index for refraction
/// rounding to 2 SigFigs
double wclimit_pion = 0.16; //water Cherenkov momentum threshold GeV
double wclimit_proton = 1.1; //water Cherenkov momentum threshold GeV
double wclimit_kaon = .56; //water Cherenkov momentum threshold GeV **THe the charged and neutral kaons thresholds are the same to 2 sigfigs
while ((p = dynamic_cast<genie::GHepParticle *>(iter.Next()))) {

int pdgc = p->Pdg();
double pipx = p->Px();
double pipy = p->Py();
double pipz = p->Pz();
double P_mag = std::sqrt(pipx*pipx + pipy*pipy + pipz*pipz);
int status = p->Status();
double wclimit = 0.160; //water Cherenkov momentum threshold GeV

if (status != genie::kIStStableFinalState) continue;

if (pdgc == genie::kPdgNeutron) thegenieinfo.numfsneutrons++;
else if (pdgc == genie::kPdgProton) thegenieinfo.numfsprotons++;
else if (pdgc == genie::kPdgProton) {
thegenieinfo.numfsprotons++;
if (P_mag > wclimit_proton) {
pdgs.push_back(pdgc);
Pmag.push_back(P_mag);
}
}
else if (pdgc == genie::kPdgPiP) {
thegenieinfo.numfspiplus++;
double pipx = p->Px();
double pipy = p->Py();
double pipz = p->Pz();
if (std::sqrt(pipx*pipx + pipy*pipy + pipz*pipz) > wclimit) thegenieinfo.numfspipluscher++;
if (P_mag > wclimit_pion){
pdgs.push_back(pdgc);
Pmag.push_back(P_mag);
thegenieinfo.numfspipluscher++;
}
}
else if (pdgc == genie::kPdgPiM) {
thegenieinfo.numfspiminus++;
double pipx = p->Px();
double pipy = p->Py();
double pipz = p->Pz();
if (std::sqrt(pipx*pipx + pipy*pipy + pipz*pipz) > wclimit) thegenieinfo.numfspiminuscher++;
if (P_mag > wclimit_pion) {
pdgs.push_back(pdgc);
Pmag.push_back(P_mag);
thegenieinfo.numfspiminuscher++;
}
}
else if (pdgc == genie::kPdgPi0) thegenieinfo.numfspi0++;
else if (pdgc == genie::kPdgKP) {
thegenieinfo.numfskplus++;
double pipx = p->Px();
double pipy = p->Py();
double pipz = p->Pz();
if (std::sqrt(pipx*pipx + pipy*pipy + pipz*pipz) > wclimit) thegenieinfo.numfskpluscher++;
if (P_mag > wclimit_kaon) {
pdgs.push_back(pdgc);
Pmag.push_back(P_mag);
thegenieinfo.numfskpluscher++;
}
}
else if (pdgc == genie::kPdgKM) {
thegenieinfo.numfskminus++;
double pipx = p->Px();
double pipy = p->Py();
double pipz = p->Pz();
if (std::sqrt(pipx*pipx + pipy*pipy + pipz*pipz) > wclimit) thegenieinfo.numfskminuscher++;
if (P_mag > wclimit_kaon){
pdgs.push_back(pdgc);
Pmag.push_back(P_mag);
thegenieinfo.numfskminuscher++;
}
}
}

Expand All @@ -983,6 +1019,14 @@ void LoadReweightGenieEvent::GetGenieEntryInfo(genie::EventRecord* gevtRec, geni
// q=k1-k2, 4-p transfer
/*TLorentzVector*/ thegenieinfo.q = TLorentzVectorToFourVectorRW((*k1)-(*k2));
// /*Double_t*/ thegenieinfo.Q2 = genieint->Kine().Q2(); // not set in our GENIE files!
double q0 = (gevtRec->Probe()->P4()->E()*1000.) - (gevtRec->FinalStatePrimaryLepton()->P4()->E()*1000.);
double px1 = (gevtRec->FinalStatePrimaryLepton()->P4()->Px()*1000.) - (gevtRec->Probe()->P4()->Px()*1000.);
double py1 = (gevtRec->FinalStatePrimaryLepton()->P4()->Py()*1000.) - (gevtRec->Probe()->P4()->Py()*1000.);
double pz1 = (gevtRec->FinalStatePrimaryLepton()->P4()->Pz()*1000.) - (gevtRec->Probe()->P4()->Pz()*1000.);
double q3 = sqrt(px1*px1+py1*py1+pz1*pz1);
thegenieinfo.Q2 = q3*q3 - q0*q0; // MeV
eventq0 = q0;
eventq3 = q3;
// momemtum transfer
/*Double_t*/ thegenieinfo.Q2 = -1 * thegenieinfo.q.M2();
// E transfer to the nucleus
Expand Down
9 changes: 9 additions & 0 deletions UserTools/LoadReweightGenieEvent/LoadReweightGenieEvent.h
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Original file line number Diff line number Diff line change
Expand Up @@ -210,6 +210,15 @@ class LoadReweightGenieEvent: public Tool {
bool isintank=false;
bool isinfiducialvol=false;
double eventq2=-1;
double eventw2=-1;
int TrueTargetZ = -1;
double eventbj_x=-1;
double eventelastic_y=-1;
double eventq0=-1;
double eventq3=-1;
std::vector<int>pdgs;
std::vector<double>Pmag;

double eventEnu=-1;
Direction eventPnu;
int neutrinopdg=-1;
Expand Down

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