Changes between Version 10 and Version 11 of HowToAddSample

Timestamp:

Jan 5, 2017, 3:05:57 PM (7 years ago)

Author:

Clarence Wret

Comment:

--

HowToAddSample

@@ -33 +33 @@
 
 In NUISANCE we try to add all available distributions from a publication. '''However''', some distributions will have detector effects "folded" into them (i.e. they will be raw detector-level data). We can only use these if there is some method which bring detector-level variables (e.g. p_mu seen in the detector) to truth-level variable (e.g. p_mu seen after correcting for the detector effects).
+
+=== Implementing a sample ===
+
+{{{
+#!c
+#include "T2K_CC1pip_H2O_XSec_1Dpmu_nu.h"
+
+// The muon momentum
+
+//******************************************************************** 
+T2K_CC1pip_H2O_XSec_1Dpmu_nu::T2K_CC1pip_H2O_XSec_1Dpmu_nu(std::string inputfile, FitWeight *rw, std::string  type, std::string fakeDataFile){
+//******************************************************************** 
+
+  fName = "T2K_CC1pip_H2O_XSec_1Dpmu_nu";
+  fPlotTitles = "; p_{#mu} (GeV/c); d#sigma/dp_{#mu} (cm^{2}/(GeV/c)/nucleon)";
+  EnuMin = 0.; 
+  EnuMax = 10.;
+  Measurement1D::SetupMeasurement(inputfile, type, rw, fakeDataFile);
+
+  // Data comes in ROOT file
+  // hResultTot is cross-section with all errors
+  // hResultStat is cross-section with stats-only errors
+  // hTruthNEUT is the NEUT cross-section given by experimenter
+  // hTruthGENIE is the GENIE cross-section given by experimenter
+  SetDataFromFile(GeneralUtils::GetTopLevelDir()+"/data/T2K/CC1pip/H2O/nd280data-numu-cc1pi-xs-on-h2o-2015.root","MuMom/hResultTot");
+  SetCovarFromDataFile(GeneralUtils::GetTopLevelDir()+"/data/T2K/CC1pip/H2O/nd280data-numu-cc1pi-xs-on-h2o-2015.root", "MuMom/TotalCovariance", true);
+
+  SetupDefaultHist();
+
+  fScaleFactor = (fEventHist->Integral("width")*1E-38)/double(fNEvents)/TotalIntegratedFlux("width");
+};
+
+//******************************************************************** 
+// Find the momentum of the muon
+void T2K_CC1pip_H2O_XSec_1Dpmu_nu::FillEventVariables(FitEvent *event) {
+//******************************************************************** 
+
+  // Need to make sure there's a muon
+  if (event->NumFSParticle(13) == 0) return;
+
+  // Get the muon
+  TLorentzVector Pmu  = event->GetHMFSParticle(13)->fP;
+
+  double p_mu = FitUtils::p(Pmu);
+
+  fXVar = p_mu;
+
+  return;
+};
+
+//******************************************************************** 
+// Beware: The H2O analysis has different signal definition to the CH analysis!
+bool T2K_CC1pip_H2O_XSec_1Dpmu_nu::isSignal(FitEvent *event) {
+//******************************************************************** 
+  return SignalDef::isCC1pip_T2K_H2O(event, EnuMin, EnuMax);
+}
+}}}