1// -*- C++ -*-
  2#include "Rivet/Analysis.hh"
  3#include "Rivet/Projections/FinalState.hh"
  4
  5namespace Rivet {
  6
  7
  8  /// @brief Add a short analysis description here
  9  class TASSO_1984_I199468 : public Analysis {
 10  public:
 11
 12    /// Constructor
 13    RIVET_DEFAULT_ANALYSIS_CTOR(TASSO_1984_I199468);
 14
 15
 16    /// @name Analysis methods
 17    //@{
 18
 19    /// Book histograms and initialise projections before the run
 20    void init() {
 21      // Initialise and register projections
 22      declare(FinalState(), "FS");
 23
 24      // Book histograms
 25      book(_c_hadrons, "/TMP/sigma_hadrons");
 26      book(_c_muons, "/TMP/sigma_muons");
 27    }
 28
 29
 30    /// Perform the per-event analysis
 31    void analyze(const Event& event) {
 32
 33      const FinalState& fs = apply<FinalState>(event, "FS");
 34
 35      map<long,int> nCount;
 36      int ntotal(0);
 37      for (const Particle& p : fs.particles()) {
 38	nCount[p.pid()] += 1;
 39	++ntotal;
 40      }
 41      // mu+mu- + photons
 42      if(nCount[-13]==1 and nCount[13]==1 &&
 43	 ntotal==2+nCount[22])
 44	_c_muons->fill();
 45      // everything else
 46      else
 47	_c_hadrons->fill();
 48
 49    }
 50
 51    /// Normalise histograms etc., after the run
 52    void finalize() {
 53      Scatter1D R = *_c_hadrons/ *_c_muons;
 54      double              rval = R.point(0).x();
 55      pair<double,double> rerr = R.point(0).xErrs();
 56      double fact = crossSection()/ sumOfWeights() /picobarn;
 57      double sig_h = _c_hadrons->val()*fact;
 58      double err_h = _c_hadrons->err()*fact;
 59      double sig_m = _c_muons  ->val()*fact;
 60      double err_m = _c_muons  ->err()*fact;
 61      for(unsigned int ix=1;ix<3;++ix) {
 62	Scatter2D temphisto(refData(ix, 1, 1));
 63	std::ostringstream title;
 64	title << "d0" << ix;
 65	Scatter2DPtr hadrons;
 66	book(hadrons, title.str()+"_sigma_hadrons");
 67	Scatter2DPtr muons;
 68	book(muons, title.str()+"_sigma_muons"  );
 69	Scatter2DPtr mult;
 70	book(mult, ix, 1, 1);
 71	for (size_t b = 0; b < temphisto.numPoints(); b++) {
 72	  const double x  = temphisto.point(b).x();
 73	  pair<double,double> ex = temphisto.point(b).xErrs();
 74	  pair<double,double> ex2 = ex;
 75	  if(ex2.first ==0.) ex2. first=0.0001;
 76	  if(ex2.second==0.) ex2.second=0.0001;
 77	  if (inRange(sqrtS()/GeV, x-ex2.first, x+ex2.second)) {
 78	    mult   ->addPoint(x, rval, ex, rerr);
 79	    hadrons->addPoint(x, sig_h, ex, make_pair(err_h,err_h));
 80	    muons  ->addPoint(x, sig_m, ex, make_pair(err_m,err_m));
 81	  }
 82	  else {
 83	    mult   ->addPoint(x, 0., ex, make_pair(0.,.0));
 84	    hadrons->addPoint(x, 0., ex, make_pair(0.,.0));
 85	    muons  ->addPoint(x, 0., ex, make_pair(0.,.0));
 86	  }
 87	}
 88      }
 89    }
 90    //@}
 91
 92    /// @name Histograms
 93    //@{
 94    CounterPtr _c_hadrons, _c_muons;
 95    //@}
 96
 97  };
 98
 99
100  // The hook for the plugin system
101  RIVET_DECLARE_PLUGIN(TASSO_1984_I199468);
102
103
104}