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| // -*- C++ -*-
#include "Rivet/Analysis.hh"
#include "Rivet/Projections/ChargedFinalState.hh"
namespace Rivet {
/// @brief Add a short analysis description here
class MARKI_1975_I100592 : public Analysis {
public:
/// Constructor
RIVET_DEFAULT_ANALYSIS_CTOR(MARKI_1975_I100592);
/// @name Analysis methods
//@{
/// Book histograms and initialise projections before the run
void init() {
// Initialise and register projections
declare(ChargedFinalState(), "FS");
// Book histograms
book(_nHadrons, "TMP/hadrons");
book(_nEvent, "TMP/event");
}
/// Perform the per-event analysis
void analyze(const Event& event) {
const ChargedFinalState& fs = apply<ChargedFinalState>(event, "FS");
_nEvent->fill();
_nHadrons->fill(fs.particles().size());
}
/// Normalise histograms etc., after the run
void finalize() {
for(unsigned int ix=1;ix<3;++ix) {
double sigma,error;
if(ix==1) {
sigma = _nEvent->val()*crossSection()/ sumOfWeights() /nanobarn;
error = _nEvent->err()*crossSection()/ sumOfWeights() /nanobarn;
}
else {
sigma = _nHadrons->val()/sumOfWeights();
error = _nHadrons->err()/sumOfWeights();
}
Scatter2D temphisto(refData(ix, 1, 1));
Scatter2DPtr mult;
book(mult, ix, 1, 1);
for (size_t b = 0; b < temphisto.numPoints(); b++) {
const double x = temphisto.point(b).x();
pair<double,double> ex = temphisto.point(b).xErrs();
pair<double,double> ex2 = ex;
if(ex2.first ==0.) ex2. first=0.0001;
if(ex2.second==0.) ex2.second=0.0001;
if (inRange(sqrtS()/GeV, x-ex2.first, x+ex2.second)) {
mult->addPoint(x, sigma, ex, make_pair(error,error));
}
else {
mult->addPoint(x, 0., ex, make_pair(0.,.0));
}
}
}
}
//@}
/// @name Histograms
//@{
CounterPtr _nHadrons,_nEvent;
//@}
};
// The hook for the plugin system
RIVET_DECLARE_PLUGIN(MARKI_1975_I100592);
}
|