doxygen/nuint09__1pi2_8C_source.html

 //
 // NuINT09 Conference, Benchmark Calculations (GENIE contribution)
 //
 // 1PI.2:
 // 1pi+ cross section at E_nu= 1.0 and 1.5 GeV as a function of pi kinetic energy.
 //
 // Inputs:
 // - sample id: 0 (nu_mu+C12), 1 (nu_mu+O16), 2 (nu_mu+Fe56)
 // - single pion source: 0 (all), 1 (P33(1232) resonance only), 2 (resonances only)
 // - stage: 0 -> primary Xpi+, 1 -> final state Xpi+
 //
 // Costas Andreopoulos, STFC / Rutherford Appleton Laboratory
 //
 #include <iomanip>

 //
 // consts
 //
 const int kNSamples       = 3;
 const int kNWCur          = 1;
 const int kNEnergies      = 2;
 const int kNRunsPerCase   = 5;
 const int kNEvtPerRun     = 100000;

 const char * kLabel[kNSamples] =
 {
  // available samples
  /* 0 */ "nu_mu_C12",
  /* 1 */ "nu_mu_O16",
  /* 2 */ "nu_mu_Fe56"
 };
 const int kRunNu1PI2[kNSamples][kNWCur][kNEnergies][kNRunsPerCase] =
 {
  /* indices : sample ; cc/nc ; energy */
  {
   /* 0,0,0 (nu_mu C12,  CC, 1.0 GeV) */ { {900200, 900201, 900202, 900203, 900204},
   /* 0,0,1 (nu_mu C12,  CC, 1.5 GeV) */   {900300, 900301, 900302, 900303, 900304} }
  },
  {
   /* 1,0,0 (nu_mu O16,  CC, 1.0 GeV) */ { {910200, 910201, 910202, 910203, 910204},
   /* 1,0,1 (nu_mu O16,  CC, 1.5 GeV) */   {910300, 910301, 910302, 910303, 910304} }
  },
  {
   /* 2,0,0 (nu_mu Fe56, CC, 1.0 GeV) */ { {920200, 920201, 920202, 920203, 920204},
   /* 2,0,1 (nu_mu Fe56, CC, 1.5 GeV) */   {920300, 920301, 920302, 920303, 920304} }
  }
 };

 void nuint09_1pi2(int isample, int single_pion_sources=0, int stage=1)
 {
  cout << " ***** running: 1PI.2" << endl;

   if(isample<0 || isample >= kNSamples) return;
   if(single_pion_sources<0 || single_pion_sources>2) return;

   const char * label = kLabel[isample];

   // get cross section graph

   TFile fsig("./cc1pip_tmp.root","read"); // generated at [1PI.1]
   TGraph * sig_graph_cc1pip = (TGraph*) fsig.Get("CC1pip");

   // range & spacing

   const int    nKEpip   = 60;
   const double KEpipmin =  0.00;
   const double KEpipmax =  1.50;

   // create output stream

   ostringstream out_filename;
   out_filename << label;

   if      (single_pion_sources==0) out_filename << ".1pi_2a.";
   else if (single_pion_sources==1) out_filename << ".1pi_2b.";
   else if (single_pion_sources==2) out_filename << ".1pi_2c.";

   if(stage==0) out_filename << "no_FSI.";

   out_filename << label << "dsig1pi_dKEpi.data";

   ofstream out_stream(out_filename.str().c_str(), ios::out);

   // write out txt file

   out_stream << "# [" << label << "]" << endl;
   out_stream << "#  " << endl;
   out_stream << "# [1PI.2]:" << endl;
   out_stream << "#  1pi+ cross section at E_nu= 1.0 and 1.5 GeV as a function of the pi+ kinetic energy" << endl;
   if(stage==0) {
     out_stream << "#  ***** NO FSI: The {X pi+} state is a primary hadronic state" << endl;
   }
   if(single_pion_sources==0) {
      out_stream << "#  1pi sources: All" << endl;
   }
   else if(single_pion_sources==1) {
      out_stream << "#  1pi sources: P33(1232) resonance only" << endl;
   }
   else if(single_pion_sources==2) {
      out_stream << "#  1pi sources: All resonances only" << endl;
   }
   out_stream << "#  " << endl;
   out_stream << "#  Note:" << endl;
   out_stream << "#   - pi+ kinetic energy KE in GeV, linear spacing between KEmin = " << KEpipmin << " GeV, KEmax = " << KEpipmax << " GeV "  << endl;
   out_stream << "#   - cross sections in 1E-38 cm^2 / GeV" << endl;
   out_stream << "#   - quoted cross section is nuclear cross section divided with number of nucleons A" << endl;
   out_stream << "#  Columns:" << endl;
   out_stream << "#  |  KE(pi+)   |   dsig(numu A -> mu- 1pi+ X; Enu = 1.0 GeV)   |  dsig(numu A -> mu- 1pi+ X; Enu = 1.5 GeV)  | "  << endl;

   out_stream << std::fixed << setprecision(6);

   //
   // load event data
   //

   TChain * chain = new TChain("gst");

   // loop over CC/NC cases
   for(int iwkcur=0; iwkcur<kNWCur; iwkcur++) {
     // loop over energies
     for(int ie=0; ie<kNEnergies; ie++) {
        // loop over runs for current case
        for(int ir=0; ir<kNRunsPerCase; ir++) {
           // build filename
           ostringstream filename;
           int run_number = kRunNu1PI2[isample][iwkcur][ie][ir];
           filename << "../gst/gntp." << run_number << ".gst.root";
           // add to chain
           cout << "Adding " << filename.str() << " to event chain" << endl;
           chain->Add(filename.str().c_str());
        }
     }
   }

   //
   // get CC1pi+ cross sections at given energies for normalization purposes
   //
   double sig_cc1pip_1000MeV = sig_graph_cc1pip -> Eval (1.0);
   double sig_cc1pip_1500MeV = sig_graph_cc1pip -> Eval (1.5);

   //
   // book histograms
   //
   TH1D * hst_dsig_dKEpip_1000MeV = new TH1D("hst_dsig_dKEpip_1000MeV","dsig/dKEpi+, numu A -> mu- 1pi+ X, Enu=1.0 GeV", nKEpip, KEpipmin, KEpipmax);
   TH1D * hst_dsig_dKEpip_1500MeV = new TH1D("hst_dsig_dKEpip_1500MeV","dsig/dKEpi+, numu A -> mu- 1pi+ X, Enu=1.5 GeV", nKEpip, KEpipmin, KEpipmax);

   //
   // fill histograms
   //
   if(stage==1) {
      if(single_pion_sources==0) {
        // all sources
        chain->Draw("(Ef-0.139)>>hst_dsig_dKEpip_1000MeV","cc&&Ev>0.99&&Ev<1.01&&pdgf==211&&nfpip==1&&nfpim==0&&nfpi0==0","GOFF");
        chain->Draw("(Ef-0.139)>>hst_dsig_dKEpip_1500MeV","cc&&Ev>1.49&&Ev<1.51&&pdgf==211&&nfpip==1&&nfpim==0&&nfpi0==0","GOFF");
      }
      else if(single_pion_sources==1) {
        // P33(1232) only
        chain->Draw("(Ef-0.139)>>hst_dsig_dKEpip_1000MeV","cc&&resid==0&&res&&Ev>0.99&&Ev<1.01&&pdgf==211&&nfpip==1&&nfpim==0&&nfpi0==0","GOFF");
        chain->Draw("(Ef-0.139)>>hst_dsig_dKEpip_1500MeV","cc&&resid==0&&res&&Ev>1.49&&Ev<1.51&&pdgf==211&&nfpip==1&&nfpim==0&&nfpi0==0","GOFF");
      }
      else if(single_pion_sources==2) {
        // all resonances only
        chain->Draw("(Ef-0.139)>>hst_dsig_dKEpip_1000MeV","cc&&res&&Ev>0.99&&Ev<1.01&&pdgf==211&&nfpip==1&&nfpim==0&&nfpi0==0","GOFF");
        chain->Draw("(Ef-0.139)>>hst_dsig_dKEpip_1500MeV","cc&&res&&Ev>1.49&&Ev<1.51&&pdgf==211&&nfpip==1&&nfpim==0&&nfpi0==0","GOFF");
      }
   }
   else if(stage==0) {
      if(single_pion_sources==0) {
        // all sources
        chain->Draw("(Ei-0.139)>>hst_dsig_dKEpip_1000MeV","cc&&Ev>0.99&&Ev<1.01&&pdgi==211&&nipip==1&&nipim==0&&nipi0==0","GOFF");
        chain->Draw("(Ei-0.139)>>hst_dsig_dKEpip_1500MeV","cc&&Ev>1.49&&Ev<1.51&&pdgi==211&&nipip==1&&nipim==0&&nipi0==0","GOFF");
      }
      else if(single_pion_sources==1) {
        // P33(1232) only
        chain->Draw("(Ei-0.139)>>hst_dsig_dKEpip_1000MeV","cc&&resid==0&&res&&Ev>0.99&&Ev<1.01&&pdgi==211&&nipip==1&&nipim==0&&nipi0==0","GOFF");
        chain->Draw("(Ei-0.139)>>hst_dsig_dKEpip_1500MeV","cc&&resid==0&&res&&Ev>1.49&&Ev<1.51&&pdgi==211&&nipip==1&&nipim==0&&nipi0==0","GOFF");
      }
      else if(single_pion_sources==2) {
        // all resonances only
        chain->Draw("(Ei-0.139)>>hst_dsig_dKEpip_1000MeV","cc&&res&&Ev>0.99&&Ev<1.01&&pdgi==211&&nipip==1&&nipim==0&&nipi0==0","GOFF");
        chain->Draw("(Ei-0.139)>>hst_dsig_dKEpip_1500MeV","cc&&res&&Ev>1.49&&Ev<1.51&&pdgi==211&&nipip==1&&nipim==0&&nipi0==0","GOFF");
      }
   }

   //
   // normalize
   //
   double norm_cc1pip_1000MeV = hst_dsig_dKEpip_1000MeV -> Integral("width") / sig_cc1pip_1000MeV;
   double norm_cc1pip_1500MeV = hst_dsig_dKEpip_1500MeV -> Integral("width") / sig_cc1pip_1500MeV;

   if (norm_cc1pip_1000MeV > 0) hst_dsig_dKEpip_1000MeV -> Scale(1./norm_cc1pip_1000MeV);
   if (norm_cc1pip_1500MeV > 0) hst_dsig_dKEpip_1500MeV -> Scale(1./norm_cc1pip_1500MeV);

   for(int i=1; i <= hst_dsig_dKEpip_1000MeV->GetNbinsX(); i++) {

      double KEpip = hst_dsig_dKEpip_1000MeV -> GetBinCenter(i);

      double dsig_dKEpip_1000MeV = hst_dsig_dKEpip_1000MeV -> GetBinContent(i);
      double dsig_dKEpip_1500MeV = hst_dsig_dKEpip_1500MeV -> GetBinContent(i);

      dsig_dKEpip_1000MeV = TMath::Max(0., dsig_dKEpip_1000MeV);
      dsig_dKEpip_1500MeV = TMath::Max(0., dsig_dKEpip_1500MeV);

      out_stream << setw(15) << KEpip
                 << setw(15) << dsig_dKEpip_1000MeV
                 << setw(15) << dsig_dKEpip_1500MeV
                 << endl;
   }

   out_stream.close();

   // visual inspection
   //TCanvas * c1 = new TCanvas("c1","",20,20,500,500);
   //...
   //c1->Update();

   delete chain;
   fsig.Close();
 }
kNSamples
const int kNSamples
Definition: nuint09_1pi2.C:19

kNWCur
const int kNWCur
Definition: nuint09_1pi2.C:20

i
size_t i(0)

kLabel
const char * kLabel[kNSamples]
Definition: nuint09_1pi2.C:25

kNEnergies
const int kNEnergies
Definition: nuint09_1pi2.C:21

kRunNu1PI2
const int kRunNu1PI2[kNSamples][kNWCur][kNEnergies][kNRunsPerCase]
Definition: nuint09_1pi2.C:32

cout
the ParameterSet object passed in for the configuration of a destination should be the only source that can affect the behavior of that destination This is to eliminate the dependencies of configuring a destination from multiple mostly from the defaults It suppresses possible glitches about changing the configuration file somewhere outside of a destination segament might still affect the behavior of that destination In the previous configuration for a specific the value of a certain e may come from following and have been suppressed It the configuring ParameterSet object for each destination will be required to carry a parameter list as complete as possible If a parameter still cannot be found in the ParameterSet the configuration code will go look for a hardwired default directly The model is a great simplicity comparing with the previous especially when looking for default values Another great advantage is most of the parameters now have very limited places that allows to appear Usually they can only appear at one certain level in a configuration file For in the old configuring model or in a default ParameterSet object inside of a or in a category or in a severity object This layout of multiple sources for a single parameter brings great confusion in both writing a configuration and in processing the configuration file Under the new the only allowed place for the parameter limit to appear is inside of a category which is inside of a destination object Other improvements simplify the meaning of a destination name In the old a destination name has multiple folds of meanings the e cout and cerr have the special meaning of logging messages to standard output or standard error the name also serves as the output filename if the destination is a file these names are also references to look up for detailed configurations in configuring the MessageFacility The multi purpose of the destination name might cause some unwanted behavior in either writing or parsing the configuration file To amend in the new model the destination name is now merely a name for a which might represent the literal purpose of this or just an id All other meanings of the destinations names now go into the destination ParameterSet as individual such as the type parameter and filename parameter Following is the deatiled rule for the new configuring Everything that is related with MessageFacility configuration must be wrapped in a single ParameterSet object with the name MessageFacility The MessageFacility ParameterSet object contains a series of top level parameters These parameters can be chosen a vector of string listing the name of debug enabled models Or use *to enable debug messages in all modules a vector of string a vector of string a vector of string a ParameterSet object containing the list of all destinations The destinations ParameterSet object is a combination of ParameterSet objects for individual destinations There are two types of destinations that you can insert in the destinations ParameterSet ordinary including cout
Definition: MessageFacilityAsStandAlonePackage.txt:82

ie
var ie
Definition: slidy.js:14

nuint09_1pi2
void nuint09_1pi2(int isample, int single_pion_sources=0, int stage=1)
Definition: nuint09_1pi2.C:49

kNEvtPerRun
const int kNEvtPerRun
Definition: nuint09_1pi2.C:23

kNRunsPerCase
const int kNRunsPerCase
Definition: nuint09_1pi2.C:22