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HistMuCapUncontainedChannel.cpp
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HistMuCapUncontainedChannel.cpp
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// Andrei Gaponenko, 2014
#include "HistMuCapUncontainedChannel.h"
#include "TH1.h"
#include "TH2.h"
#include "TH3.h"
#include "HistogramFactory.h"
#include "ConfigFile.h"
#include "MuCapUtilities.h"
#define SETUP_RECOMC_HIST_UNCONTAINED(hname) \
do { \
reco##hname##_ = hf.DefineTH1D(hdir, "ptot"#hname, \
"ptot, non contained"#hname, \
recopnbins, recopmin, recopmax); \
\
reco##hname##_->GetXaxis()->SetTitle("p, MeV/c"); \
} while(0)
#define SETUP_RESPONSE_HIST_UNCONTAINTED(kind, hname) \
do { \
kind##hname##_ = hf.DefineTH2D(hdir, #kind #hname, \
"Non-contained channel "#kind#hname, \
gen1nbins, gen1pmin, gen1pmax, \
recopnbins, recopmin, recopmax); \
\
\
kind##hname##_->SetOption("colz"); \
kind##hname##_->GetXaxis()->SetTitle("p true, MeV/c"); \
kind##hname##_->GetYaxis()->SetTitle("p reco, MeV/c"); \
} while(0)
//================================================================
void HistMuCapUncontainedChannel::init(HistogramFactory& hf,
const std::string& hgrandtopdir,
const std::string& channelsetname,
const DetectorGeo& geom,
const ConfigFile& conf)
{
doMCTruth_ = conf.read<bool>("TruthBank/Do");
const std::string htopdir = hgrandtopdir+"/"+channelsetname;
const std::string hdir = htopdir+"/uncontained";
//----------------------------------------------------------------
h_cuts_r = hf.DefineTH1D(hdir, "cuts_r", "Events rejected by cut", CUTS_END, -0.5, CUTS_END-0.5);
h_cuts_r->SetStats(kFALSE);
set_cut_bin_labels(h_cuts_r->GetXaxis());
h_cuts_r->SetOption("hist text");
h_cuts_p = hf.DefineTH1D(hdir, "cuts_p", "Events before cut", CUTS_END, -0.5, CUTS_END-0.5);
set_cut_bin_labels(h_cuts_p->GetXaxis());
h_cuts_p->SetStats(kFALSE);
h_cuts_p->SetOption("hist text");
//----------------------------------------------------------------
// "channel" analysis histograms
const int recopnbins = conf.read<int>(hdir+"/recopnbins");
const double recopmin = conf.read<double>(hdir+"/recopmin");
const double recopmax = conf.read<double>(hdir+"/recopmax");
//----------------------------------------------------------------
SETUP_RECOMC_HIST_UNCONTAINED();
if(doMCTruth_) {
SETUP_RECOMC_HIST_UNCONTAINED(_mcproton);
SETUP_RECOMC_HIST_UNCONTAINED(_mcdeuteron);
SETUP_RECOMC_HIST_UNCONTAINED(_mctriton);
SETUP_RECOMC_HIST_UNCONTAINED(_mcalpha);
SETUP_RECOMC_HIST_UNCONTAINED(_mcdio);
}
//----------------------------------------------------------------
if(doMCTruth_) {
// truth level binning must be consistent for all channels
const int gen1nbins = conf.read<int>(htopdir+"/numGeneratorBins");
const double gen1pmin = conf.read<double>(htopdir+"/genpmin");
const double gen1pmax = conf.read<double>(htopdir+"/genpmax");
// Migration matrices for the non contained channel
SETUP_RESPONSE_HIST_UNCONTAINTED(migration,);
SETUP_RESPONSE_HIST_UNCONTAINTED(migration, _mcproton);
SETUP_RESPONSE_HIST_UNCONTAINTED(migration, _mcdeuteron);
SETUP_RESPONSE_HIST_UNCONTAINTED(migration, _mctriton);
SETUP_RESPONSE_HIST_UNCONTAINTED(migration, _mcalpha);
// Contamination matrices for the non contained channel
SETUP_RESPONSE_HIST_UNCONTAINTED(contamination,);
SETUP_RESPONSE_HIST_UNCONTAINTED(contamination, _mcproton);
SETUP_RESPONSE_HIST_UNCONTAINTED(contamination, _mcdeuteron);
SETUP_RESPONSE_HIST_UNCONTAINTED(contamination, _mctriton);
SETUP_RESPONSE_HIST_UNCONTAINTED(contamination, _mcalpha);
}
}
//================================================================
bool HistMuCapUncontainedChannel::accepted(const EventClass& evt,
bool referenceSampleAccepted,
int iPosTrack,
int iNegTrack)
{
CutNumber c = analyzeEvent(evt, referenceSampleAccepted, iPosTrack, iNegTrack);
h_cuts_r->Fill(c);
for(int cut=0; cut<=c; cut++) {
h_cuts_p->Fill(cut);
}
return c == CUTS_ACCEPTED;
}
//================================================================
HistMuCapUncontainedChannel::CutNumber
HistMuCapUncontainedChannel::analyzeEvent(const EventClass& evt,
bool referenceSampleAccepted,
int iPosTrack,
int iNegTrack)
{
if(iPosTrack == -1) {
return CUT_POSTRK;
}
if(iNegTrack != -1) {
return CUT_DIO;
}
const double prec = evt.ptot[iPosTrack];
reco_->Fill(prec);
if(doMCTruth_) {
const unsigned imcvtxStart = evt.iCaptureMcVtxStart;
// Simulated DIO have no easily accessible MC truth. We'll tread PID=zero as DIO down in this code.
const int mcParticle = (imcvtxStart != -1) ? evt.mctrack_pid[evt.iCaptureMcTrk] : 0;
if(imcvtxStart != -1) {
(referenceSampleAccepted ? migration_ : contamination_)
->Fill(evt.mcvertex_ptot[imcvtxStart], prec);
}
switch(mcParticle) {
case MuCapUtilities::PID_G3_PROTON:
reco_mcproton_->Fill(prec);
(referenceSampleAccepted ? migration_mcproton_ : contamination_mcproton_)
->Fill(evt.mcvertex_ptot[imcvtxStart], prec);
break;
case MuCapUtilities::PID_G3_DEUTERON:
reco_mcdeuteron_->Fill(prec);
(referenceSampleAccepted ? migration_mcdeuteron_ : contamination_mcdeuteron_)
->Fill(evt.mcvertex_ptot[imcvtxStart], prec);
break;
case MuCapUtilities::PID_G3_TRITON:
reco_mctriton_->Fill(prec);
(referenceSampleAccepted ? migration_mctriton_ : contamination_mctriton_)
->Fill(evt.mcvertex_ptot[imcvtxStart], prec);
break;
case MuCapUtilities::PID_G3_ALPHA:
reco_mcalpha_->Fill(prec);
(referenceSampleAccepted ? migration_mcalpha_ : contamination_mcalpha_)
->Fill(evt.mcvertex_ptot[imcvtxStart], prec);
break;
case 0:
reco_mcdio_->Fill(prec);
break;
default:
std::ostringstream os;
os<<"HistMuCapUncontainedChannel: unknown capture PID="<<mcParticle;
throw std::runtime_error(os.str());
}
}
return CUTS_ACCEPTED;
}
//================================================================