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| // -*- C++ -*-
#include "Rivet/Analysis.hh"
#include "Rivet/Projections/FinalState.hh"
#include "Rivet/Projections/UnstableParticles.hh"
namespace Rivet {
/// @brief Add a short analysis description here
class BESII_2007_I750713 : public Analysis {
public:
/// Constructor
RIVET_DEFAULT_ANALYSIS_CTOR(BESII_2007_I750713);
/// @name Analysis methods
//@{
/// Book histograms and initialise projections before the run
void init() {
// Initialise and register projections
declare(FinalState(), "FS");
declare(UnstableParticles(), "UFS");
// Book histograms
for(unsigned int ix=1;ix<19;++ix) {
stringstream ss;
ss << "TMP/n" << ix;
book(_nMeson[ix], ss.str());
}
}
void findChildren(const Particle & p,map<long,int> & nRes, int &ncount) {
for (const Particle &child : p.children()) {
if(child.children().empty()) {
nRes[child.pid()]-=1;
--ncount;
}
else
findChildren(child,nRes,ncount);
}
}
/// Perform the per-event analysis
void analyze(const Event& event) {
const FinalState& fs = apply<FinalState>(event, "FS");
map<long,int> nCount;
int ntotal(0);
for (const Particle& p : fs.particles()) {
nCount[p.pid()] += 1;
++ntotal;
}
const FinalState& ufs = apply<FinalState>(event, "UFS");
for (const Particle& p : ufs.particles()) {
if(p.children().empty()) continue;
if(p.pid()!=221 && p.pid()!=333) continue;
map<long,int> nRes = nCount;
int ncount = ntotal;
findChildren(p,nRes,ncount);
// eta
if(p.pid()==221) {
if(ncount==4) {
bool matched = true;
for(auto const & val : nRes) {
if(abs(val.first)==211) {
if(val.second!=2) {
matched = false;
break;
}
}
else if(val.second!=0) {
matched = false;
break;
}
}
if(matched) _nMeson[12]->fill();
}
}
else if(p.pid()==333) {
if(ncount!=1) continue;
bool matched = true;
for(auto const & val : nRes) {
if(abs(val.first)==321) {
if(val.second!=1) {
matched = false;
break;
}
}
else if(val.second!=0) {
matched = false;
break;
}
}
if(matched)
_nMeson[7]->fill();
}
}
if(ntotal==3 && nCount[111]==1 &&
nCount[-2212] == 1 && nCount[ 2212]==1)
_nMeson[16]->fill();
else if(ntotal==4) {
if(nCount[-211] == 2 && nCount[ 211]==2)
_nMeson[3]->fill();
else if(nCount[-211] == 1 && nCount[ 211]==1 &&
nCount[-321] == 1 && nCount[ 321]==1)
_nMeson[4]->fill();
else if(nCount[-321] == 2 && nCount[ 321]==2)
_nMeson[6]->fill();
else if(nCount[-211 ] == 1 && nCount[ 211 ]==1 &&
nCount[-2212] == 1 && nCount[ 2212]==1)
_nMeson[8]->fill();
else if(nCount[-321 ] == 1 && nCount[ 321 ]==1 &&
nCount[-2212] == 1 && nCount[ 2212]==1)
_nMeson[9]->fill();
}
else if(ntotal==5 && nCount[111]==1) {
if(nCount[-211] == 2 && nCount[ 211]==2)
_nMeson[13]->fill();
else if(nCount[-211] == 1 && nCount[ 211]==1 &&
nCount[-321] == 1 && nCount[ 321]==1)
_nMeson[14]->fill();
else if(nCount[-321] == 2 && nCount[ 321]==2)
_nMeson[15]->fill();
else if(nCount[-211 ] == 1 && nCount[ 211 ]==1 &&
nCount[-2212] == 1 && nCount[ 2212]==1)
_nMeson[17]->fill();
}
else if(ntotal==6 && nCount[211]==3 && nCount[-211]==3)
_nMeson[11]->fill();
else if(ntotal==7 && nCount[111]==1 &&
nCount[211]==3 && nCount[-211]==3)
_nMeson[18]->fill();
}
/// Normalise histograms etc., after the run
void finalize() {
for(unsigned int ix=3;ix<19;++ix) {
if(ix==5 || ix==10) continue;
double sigma = _nMeson[ix]->val();
double error = _nMeson[ix]->err();
sigma *= crossSection()/ sumOfWeights() /picobarn;
error *= crossSection()/ sumOfWeights() /picobarn;
Scatter2D temphisto(refData(1, 1, ix));
Scatter2DPtr mult;
book(mult, 1, 1, ix);
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 _nMeson[19];
//@}
};
// The hook for the plugin system
RIVET_DECLARE_PLUGIN(BESII_2007_I750713);
}
|