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| // -*- C++ -*-
#include "Rivet/Analysis.hh"
#include "Rivet/Projections/FastJets.hh"
#include "Rivet/Projections/UnstableParticles.hh"
namespace Rivet {
/// @brief Add a short analysis description here
class CLEO_2006_I691720 : public Analysis {
public:
/// Constructor
RIVET_DEFAULT_ANALYSIS_CTOR(CLEO_2006_I691720);
/// @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<18;++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;
}
if(ntotal==3) {
if(nCount[211]==1 && nCount[-211]==1 && nCount[111]==1)
_nMeson[1]->fill();
}
const FinalState& ufs = apply<FinalState>(event, "UFS");
for(unsigned int ix=0;ix<ufs.particles().size();++ix) {
const Particle& p1 = ufs.particles()[ix];
if(p1.children().empty()) continue;
if(p1.pid()!=113 && abs(p1.pid())!=313) continue;
map<long,int> nRes = nCount;
int ncount = ntotal;
findChildren(p1,nRes,ncount);
if(p1.pid()==113 || p1.pid()==223 || p1.pid()==10113) {
if(ncount!=1) continue;
bool matched = true;
for(auto const & val : nRes) {
if(abs(val.first)==111 && val.second!=1) {
matched = false;
break;
}
else if(val.second!=0) {
matched = false;
break;
}
}
if(matched) {
if(p1.pid()==113) {
_nMeson[2]->fill();
_nMeson[3]->fill();
}
else if(p1.pid()==223) {
_nMeson[5]->fill();
}
else if(p1.pid()==10113) {
_nMeson[15]->fill();
}
}
}
else if(p1.pid()==abs(113) || abs(p1.pid())==10113) {
if(ncount!=1) continue;
bool matched = true;
int ipi = p1.pid()>0 ? -211 : 211;
for(auto const & val : nRes) {
if(abs(val.first)==ipi && val.second!=1) {
matched = false;
break;
}
else if(val.second!=0) {
matched = false;
break;
}
}
if(matched) {
if(p1.pid()==abs(113)) {
_nMeson[2]->fill();
_nMeson[4]->fill();
}
else {
_nMeson[15]->fill();
_nMeson[17]->fill();
}
}
}
else if(p1.pid()==abs(323)) {
if(ncount!=1) continue;
bool matched = true;
int iK = p1.pid()==323 ? -321 : 321;
for(auto const & val : nRes) {
if(abs(val.first)==iK && val.second!=1) {
matched = false;
break;
}
else if(val.second!=0) {
matched = false;
break;
}
}
if(matched) {
_nMeson[14]->fill();
}
}
// second unstable particle
if(abs(p1.pid())!=313 && p1.pid()!=113 && p1.pid()!=223 &&
p1.pid()!=333 && p1.pid()!=221 && p1.pid()!=331)
continue;
for(unsigned int iy=ix+1;iy<ufs.particles().size();++iy) {
const Particle& p2 = ufs.particles()[iy];
map<long,int> nRes2 = nRes;
int ncount2 = ncount;
findChildren(p2,nRes2,ncount2);
if(ncount!=0) continue;
bool matched=true;
for(auto const & val : nRes2) {
if(val.second!=0) {
matched = false;
break;
}
}
if(!matched) continue;
if( (p1.pid()==113 && p2.pid()==221) ||
(p2.pid()==113 && p1.pid()==221) )
_nMeson[7]->fill();
else if( (p1.pid()==223 && p2.pid()==221) ||
(p2.pid()==223 && p1.pid()==221) )
_nMeson[8]->fill();
else if( (p1.pid()==333 && p2.pid()==221) ||
(p2.pid()==333 && p1.pid()==221) )
_nMeson[9]->fill();
else if( (p1.pid()==113 && p2.pid()==331) ||
(p2.pid()==113 && p1.pid()==331) )
_nMeson[10]->fill();
else if( (p1.pid()==223 && p2.pid()==331) ||
(p2.pid()==223 && p1.pid()==331) )
_nMeson[11]->fill();
else if( (p1.pid()==333 && p2.pid()==331) ||
(p2.pid()==333 && p1.pid()==331) )
_nMeson[12]->fill();
else if( (p1.pid()==313 && p2.pid()==-313) ||
(p2.pid()==313 && p1.pid()==-313) )
_nMeson[13]->fill();
}
}
}
/// Normalise histograms etc., after the run
void finalize() {
for(unsigned int ix=1;ix<18;++ix) {
if(ix==6||ix==16) 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[18];
//@}
};
// The hook for the plugin system
RIVET_DECLARE_PLUGIN(CLEO_2006_I691720);
}
|