| 1 |
#include <vector>
|
| 2 |
#include "MathUtils.h"
|
| 3 |
#include "FSR.h"
|
| 4 |
#include "IsolationSelection.h"
|
| 5 |
#include "CommonDefs.h"
|
| 6 |
#include "TLorentzVector.h"
|
| 7 |
|
| 8 |
using namespace std;
|
| 9 |
|
| 10 |
extern vector<bool> PFnoPUflag;
|
| 11 |
|
| 12 |
//--------------------------------------------------------------------------------------------------
|
| 13 |
// typeI = PF IDed photons. NB : repurpose PFnoPUflag, flip for recovered photons
|
| 14 |
// so that they are skipped in the isolation calculation
|
| 15 |
//--------------------------------------------------------------------------------------------------
|
| 16 |
bool recover_typeI_Photon( ControlFlags & ctrl,
|
| 17 |
mithep::Electron * el,
|
| 18 |
const int electronIndex,
|
| 19 |
vector<SimpleLepton> &lepvec,
|
| 20 |
const mithep::Array<mithep::PFCandidate> * pfArr,
|
| 21 |
const mithep::Array<mithep::Electron> *eleArr,
|
| 22 |
TLorentzVector * Zvec,
|
| 23 |
vector<const mithep::PFCandidate*> &photonsToVeto )
|
| 24 |
//--------------------------------------------------------------------------------------------------
|
| 25 |
{
|
| 26 |
if( lepvec[electronIndex].fsrRecoveryAttempted ) return false;
|
| 27 |
|
| 28 |
vector<int> photonIndices;
|
| 29 |
for( int i=0; i<pfArr->GetEntries(); i++ ) {
|
| 30 |
if( !(PFnoPUflag[i])) continue; // my PF no PU hack
|
| 31 |
const mithep::PFCandidate *pf = (mithep::PFCandidate*)((*pfArr)[i]);
|
| 32 |
if( abs(pf->PFType()) == mithep::PFCandidate::eGamma &&
|
| 33 |
pf->Pt() > 2.0 && fabs(pf->Eta()) < 2.4 ) {
|
| 34 |
|
| 35 |
if( ctrl.debug ) std::cerr << "FSR :: pass preselection ... pt: "<< pf->Pt() << std::endl;
|
| 36 |
// float dR = mithep::MathUtils::DeltaR(pf->Phi(),pf->Eta(), el->Phi(), el->Eta());
|
| 37 |
float dR = mithep::MathUtils::DeltaR(pf->Phi(),pf->Eta(),
|
| 38 |
lepvec[electronIndex].vec.Phi(), lepvec[electronIndex].vec.Eta());
|
| 39 |
if( ctrl.debug ) std::cerr << "FSR :: dR = " << dR << std::endl;
|
| 40 |
|
| 41 |
//
|
| 42 |
// veto if close to an electron SC
|
| 43 |
//
|
| 44 |
bool flagEleSC = false;
|
| 45 |
for( int j=0; j<lepvec.size(); j++ ) {
|
| 46 |
if( !(abs(lepvec[j].type) == 11 ) ) continue;
|
| 47 |
if( !(lepvec[j].status.looseIDAndPre()) ) continue;
|
| 48 |
double eeta=lepvec[j].vec.Eta(); double ephi=lepvec[j].vec.Phi();
|
| 49 |
float dPhi = fabs(mithep::MathUtils::DeltaPhi(pf->Phi(),ephi));
|
| 50 |
float dEta = fabs(pf->Eta()-eeta);
|
| 51 |
float dR = mithep::MathUtils::DeltaR(pf->Phi(),pf->Eta(), ephi, eeta);
|
| 52 |
if(ctrl.debug) cout << "FSR :: comparing to ele, dPhi: " << dPhi
|
| 53 |
<< "\tdEta: " << dEta
|
| 54 |
<< "\tetaPH: " << pf->Eta()
|
| 55 |
<< "\tetaELH: " << eeta
|
| 56 |
<< "\tdR:" << dR << endl;
|
| 57 |
if( (dPhi<2.&& dEta<0.05) || dR<0.15 ) {
|
| 58 |
flagEleSC = true;
|
| 59 |
break;
|
| 60 |
}
|
| 61 |
if( flagEleSC ) break;
|
| 62 |
}
|
| 63 |
if( flagEleSC ) continue;
|
| 64 |
if( ctrl.debug ) std::cerr << "FSR :: not matched to an ele SC ... " << std::endl;
|
| 65 |
|
| 66 |
|
| 67 |
//
|
| 68 |
// check that input electron is the closest lepton to this photon
|
| 69 |
//
|
| 70 |
bool found_closer_lepton=false;
|
| 71 |
for( int j=0; j<lepvec.size(); j++ ) {
|
| 72 |
if( j == electronIndex ) continue;
|
| 73 |
if( !(lepvec[j].status.looseIDAndPre()) ) continue;
|
| 74 |
float tmp_dR = mithep::MathUtils::DeltaR(pf->Phi(),pf->Eta(),
|
| 75 |
lepvec[j].vec.Phi(), lepvec[j].vec.Eta());
|
| 76 |
if( tmp_dR < dR ) {
|
| 77 |
if(ctrl.debug) cout << "FSR :: found closer lepton (j="<<j<<" : "
|
| 78 |
<<tmp_dR<<" vs "<<dR<<") skipping..." << endl;
|
| 79 |
found_closer_lepton=true;
|
| 80 |
break;
|
| 81 |
}
|
| 82 |
}
|
| 83 |
if( found_closer_lepton ) continue;
|
| 84 |
|
| 85 |
|
| 86 |
//
|
| 87 |
// Z mass OK?
|
| 88 |
//
|
| 89 |
TLorentzVector pvec;
|
| 90 |
pvec.SetPtEtaPhiM( pf->Pt(), pf->Eta(), pf->Phi(), 0.);
|
| 91 |
float newMass = (pvec + *Zvec).M();
|
| 92 |
if( !( newMass > 4. &&
|
| 93 |
newMass < 100. &&
|
| 94 |
(fabs(newMass-Z_MASS) < fabs(Zvec->M()-Z_MASS))
|
| 95 |
) ) continue;
|
| 96 |
if( ctrl.debug ) std::cerr << "FSR :: improved Zmass ... " <<
|
| 97 |
Zvec->M() << " -> " << newMass << std::endl;
|
| 98 |
|
| 99 |
|
| 100 |
//
|
| 101 |
// "keep all photons close to one of the 4L electrons ..."
|
| 102 |
//
|
| 103 |
if( dR < 0.07 ) {
|
| 104 |
if( ctrl.debug ) std::cerr << "FSR :: dR < 0.07, pushing ... " << std::endl;
|
| 105 |
photonIndices.push_back(i);
|
| 106 |
}
|
| 107 |
|
| 108 |
//
|
| 109 |
// "need tighter cuts for other photons ..."
|
| 110 |
//
|
| 111 |
if( dR < 0.5 && pf->Pt() > 4. && dbetaCorrectedIsoDr03(ctrl, pf, el, pfArr) < 1.0) {
|
| 112 |
// if( dR < 0.5 && pf->Pt() > 4. && nonCorrectedIsoDr03(ctrl, pf, el, pfArr) < 1.0) {
|
| 113 |
if( ctrl.debug ) std::cerr << "FSR :: tighter cuts, pushing ... " << std::endl;
|
| 114 |
photonIndices.push_back(i);
|
| 115 |
}
|
| 116 |
}
|
| 117 |
}
|
| 118 |
|
| 119 |
float highest_pt = -1; int highest_pt_index=-1;
|
| 120 |
float smallest_dR = 999.; int smallest_dR_index=-1;
|
| 121 |
for( int i=0; i<photonIndices.size(); i++ ) {
|
| 122 |
const mithep::PFCandidate *pf = (mithep::PFCandidate*)(pfArr->At(photonIndices[i]));
|
| 123 |
float dR = mithep::MathUtils::DeltaR(pf->Phi(),pf->Eta(), el->Phi(), el->Eta());
|
| 124 |
if( pf->Pt() > highest_pt ) {
|
| 125 |
highest_pt_index = photonIndices[i];
|
| 126 |
highest_pt = pf->Pt();
|
| 127 |
}
|
| 128 |
if( dR < smallest_dR ) {
|
| 129 |
smallest_dR_index = photonIndices[i];
|
| 130 |
smallest_dR = dR;
|
| 131 |
}
|
| 132 |
}
|
| 133 |
|
| 134 |
const mithep::PFCandidate * thepf;
|
| 135 |
if( highest_pt > 4. ) {
|
| 136 |
thepf = (const mithep::PFCandidate*)(pfArr->At(highest_pt_index));
|
| 137 |
// "... remove it from lepton isolation ..."
|
| 138 |
// PFnoPUflag[highest_pt_index] = 0;
|
| 139 |
// TMP, commented flip above for FSR study
|
| 140 |
// gammaMatches[highest_pt_index].push_back(lepvec[electronIndex].index);
|
| 141 |
photonsToVeto.push_back(thepf);
|
| 142 |
} else if( smallest_dR != 999. ) {
|
| 143 |
thepf = (const mithep::PFCandidate*)(pfArr->At(smallest_dR_index));
|
| 144 |
// "... remove it from lepton isolation ..."
|
| 145 |
// PFnoPUflag[smallest_dR_index] = 0;
|
| 146 |
// TMP, commented flip above for FSR study
|
| 147 |
// gammaMatches[smallest_dR_index].push_back(lepvec[electronIndex].index);
|
| 148 |
photonsToVeto.push_back(thepf);
|
| 149 |
} else {
|
| 150 |
return false;
|
| 151 |
}
|
| 152 |
|
| 153 |
if( thepf != NULL ) {
|
| 154 |
// add to the electron
|
| 155 |
TLorentzVector elvec,phvec,newelvec;
|
| 156 |
elvec.SetPtEtaPhiM( el->Pt(), el->Eta(), el->Phi(), ELECTRON_MASS);
|
| 157 |
phvec.SetPtEtaPhiM( thepf->Pt(), thepf->Eta(), thepf->Phi(), 0.);
|
| 158 |
newelvec = elvec+phvec;
|
| 159 |
// don't update the electron object, just simplelepton
|
| 160 |
// el->SetPtEtaPhi (newelvec.Pt(),
|
| 161 |
// newelvec.Eta(),
|
| 162 |
// newelvec.Phi());
|
| 163 |
lepvec[electronIndex].vec += phvec;
|
| 164 |
lepvec[electronIndex].fsrRecoveryAttempted = true;
|
| 165 |
return true;
|
| 166 |
}
|
| 167 |
return false;
|
| 168 |
}
|
| 169 |
|
| 170 |
|
| 171 |
|
| 172 |
//--------------------------------------------------------------------------------------------------
|
| 173 |
// typeI = PF IDed photons. NB : repurpose PFnoPUflag, flip for recovered photons
|
| 174 |
// so that they are skipped in the isolation calculation
|
| 175 |
//--------------------------------------------------------------------------------------------------
|
| 176 |
bool recover_typeI_Photon( ControlFlags & ctrl,
|
| 177 |
mithep::Muon * mu,
|
| 178 |
const int muonIndex,
|
| 179 |
vector<SimpleLepton> &lepvec,
|
| 180 |
const mithep::Array<mithep::PFCandidate> * pfArr,
|
| 181 |
const mithep::Array<mithep::Electron> *eleArr,
|
| 182 |
TLorentzVector * Zvec,
|
| 183 |
vector<const mithep::PFCandidate*> &photonsToVeto )
|
| 184 |
//--------------------------------------------------------------------------------------------------
|
| 185 |
{
|
| 186 |
if( lepvec[muonIndex].fsrRecoveryAttempted ) return false;
|
| 187 |
|
| 188 |
vector<int> photonIndices;
|
| 189 |
for( int i=0; i<pfArr->GetEntries(); i++ ) {
|
| 190 |
if( !(PFnoPUflag[i])) continue; // my PF no PU hack
|
| 191 |
const mithep::PFCandidate *pf = (mithep::PFCandidate*)((*pfArr)[i]);
|
| 192 |
if( abs(pf->PFType()) == mithep::PFCandidate::eGamma &&
|
| 193 |
pf->Pt() > 2.0 && fabs(pf->Eta()) < 2.4 ) {
|
| 194 |
|
| 195 |
if( ctrl.debug ) std::cerr << "FSR :: pass preselection ... pt: "<< pf->Pt() << std::endl;
|
| 196 |
// float dR = mithep::MathUtils::DeltaR(pf->Phi(),pf->Eta(), mu->Phi(), mu->Eta());
|
| 197 |
float dR = mithep::MathUtils::DeltaR(pf->Phi(),pf->Eta(),
|
| 198 |
lepvec[muonIndex].vec.Phi(), lepvec[muonIndex].vec.Eta());
|
| 199 |
if( ctrl.debug ) std::cerr << "FSR :: dR = " << dR << std::endl;
|
| 200 |
|
| 201 |
//
|
| 202 |
// veto if close to an electron SC
|
| 203 |
//
|
| 204 |
bool flagEleSC = false;
|
| 205 |
for( int j=0; j<lepvec.size(); j++ ) {
|
| 206 |
if( !(abs(lepvec[j].type) == 11 ) ) continue;
|
| 207 |
if( !(lepvec[j].status.looseIDAndPre()) ) continue;
|
| 208 |
double eeta=lepvec[j].vec.Eta(); double ephi=lepvec[j].vec.Phi();
|
| 209 |
float dPhi = fabs(mithep::MathUtils::DeltaPhi(pf->Phi(),ephi));
|
| 210 |
float dEta = fabs(pf->Eta()-eeta);
|
| 211 |
float dR = mithep::MathUtils::DeltaR(pf->Phi(),pf->Eta(), ephi, eeta);
|
| 212 |
if(ctrl.debug) cout << "FSR :: comparing to ele, dPhi: " << dPhi
|
| 213 |
<< "\tdEta: " << dEta
|
| 214 |
<< "\tetaPH: " << pf->Eta()
|
| 215 |
<< "\tetaELH: " << eeta
|
| 216 |
<< "\tdR:" << dR << endl;
|
| 217 |
if( (dPhi<2.&& dEta<0.05) || dR<0.15 ) {
|
| 218 |
flagEleSC = true;
|
| 219 |
break;
|
| 220 |
}
|
| 221 |
if( flagEleSC ) break;
|
| 222 |
}
|
| 223 |
if( flagEleSC ) continue;
|
| 224 |
if( ctrl.debug ) std::cerr << "FSR :: not matched to an ele SC ... " << std::endl;
|
| 225 |
|
| 226 |
|
| 227 |
//
|
| 228 |
// check that input muon is the closest lepton to this photon
|
| 229 |
//
|
| 230 |
bool found_closer_lepton=false;
|
| 231 |
for( int j=0; j<lepvec.size(); j++ ) {
|
| 232 |
if( j == muonIndex ) continue;
|
| 233 |
if( !(lepvec[j].status.looseIDAndPre()) ) continue;
|
| 234 |
float tmp_dR = mithep::MathUtils::DeltaR(pf->Phi(),pf->Eta(),
|
| 235 |
lepvec[j].vec.Phi(), lepvec[j].vec.Eta());
|
| 236 |
if( tmp_dR < dR ) {
|
| 237 |
if(ctrl.debug) cout << "FSR :: found closer lepton (j="<<j<<" : "
|
| 238 |
<<tmp_dR<<" vs "<<dR<<") skipping..." << endl;
|
| 239 |
found_closer_lepton=true;
|
| 240 |
break;
|
| 241 |
}
|
| 242 |
}
|
| 243 |
if( found_closer_lepton ) continue;
|
| 244 |
|
| 245 |
|
| 246 |
|
| 247 |
//
|
| 248 |
// Z mass OK?
|
| 249 |
//
|
| 250 |
TLorentzVector pvec;
|
| 251 |
pvec.SetPtEtaPhiM( pf->Pt(), pf->Eta(), pf->Phi(), 0.);
|
| 252 |
float newMass = (pvec + *Zvec).M();
|
| 253 |
if( !( newMass > 4. &&
|
| 254 |
newMass < 100. &&
|
| 255 |
(fabs(newMass-Z_MASS) < fabs(Zvec->M()-Z_MASS))
|
| 256 |
) ) continue;
|
| 257 |
if( ctrl.debug ) std::cerr << "FSR :: improved Zmass ... " <<
|
| 258 |
Zvec->M() << " -> " << newMass << std::endl;
|
| 259 |
|
| 260 |
//
|
| 261 |
// "keep all photons close to one of the 4L muons ..."
|
| 262 |
//
|
| 263 |
if( dR < 0.07 ) {
|
| 264 |
if( ctrl.debug ) std::cerr << "FSR :: dR < 0.07, pushing ... " << std::endl;
|
| 265 |
photonIndices.push_back(i);
|
| 266 |
}
|
| 267 |
|
| 268 |
//
|
| 269 |
// "need tighter cuts for other photons ..."
|
| 270 |
//
|
| 271 |
if( ctrl.debug ) std::cerr << "FSR :: pass tighter?, pT: " << pf->Pt() << std::endl;
|
| 272 |
if( dR < 0.5 && pf->Pt() > 4. && dbetaCorrectedIsoDr03(ctrl, pf, mu, pfArr) < 1.0) {
|
| 273 |
// if( dR < 0.5 && pf->Pt() > 4. && nonCorrectedIsoDr03(ctrl, pf, mu, pfArr) < 1.0) {
|
| 274 |
if( ctrl.debug ) std::cerr << "FSR :: tighter cuts, pushing index= " << i << std::endl;
|
| 275 |
photonIndices.push_back(i);
|
| 276 |
}
|
| 277 |
}
|
| 278 |
}
|
| 279 |
|
| 280 |
float highest_pt = -1; int highest_pt_index=-1;
|
| 281 |
float smallest_dR = 999.; int smallest_dR_index=-1;
|
| 282 |
for( int i=0; i<photonIndices.size(); i++ ) {
|
| 283 |
const mithep::PFCandidate *pf = (mithep::PFCandidate*)(pfArr->At(photonIndices[i]));
|
| 284 |
float dR = mithep::MathUtils::DeltaR(pf->Phi(),pf->Eta(), mu->Phi(), mu->Eta());
|
| 285 |
if( pf->Pt() > highest_pt ) {
|
| 286 |
highest_pt_index = photonIndices[i];
|
| 287 |
highest_pt = pf->Pt();
|
| 288 |
}
|
| 289 |
if( dR < smallest_dR ) {
|
| 290 |
smallest_dR_index = photonIndices[i];
|
| 291 |
smallest_dR = dR;
|
| 292 |
}
|
| 293 |
}
|
| 294 |
|
| 295 |
const mithep::PFCandidate * thepf;
|
| 296 |
if( highest_pt > 4. ) {
|
| 297 |
if(ctrl.debug) std::cerr << "FSR :: taking highest pt gamma, index = " << highest_pt_index << endl;
|
| 298 |
thepf = (const mithep::PFCandidate*)(pfArr->At(highest_pt_index));
|
| 299 |
// "... remove it from lepton isolation ..."
|
| 300 |
// PFnoPUflag[highest_pt_index] = 0;
|
| 301 |
// TMP, commented flip above for FSR study
|
| 302 |
// gammaMatches[highest_pt_index].push_back(lepvec[muonIndex].index);
|
| 303 |
photonsToVeto.push_back(thepf);
|
| 304 |
} else if( smallest_dR != 999. ) {
|
| 305 |
if(ctrl.debug) std::cerr << "FSR :: taking smallest dR gamma, index = " << highest_pt_index << endl;
|
| 306 |
thepf = (const mithep::PFCandidate*)(pfArr->At(smallest_dR_index));
|
| 307 |
// "... remove it from lepton isolation ..."
|
| 308 |
// PFnoPUflag[smallest_dR_index] = 0;
|
| 309 |
// TMP, commented flip above for FSR study
|
| 310 |
//gammaMatches[smallest_dR_index].push_back(lepvec[muonIndex].index);
|
| 311 |
photonsToVeto.push_back(thepf);
|
| 312 |
} else {
|
| 313 |
return false;
|
| 314 |
}
|
| 315 |
|
| 316 |
TLorentzVector pvec;
|
| 317 |
if( thepf != NULL ) {
|
| 318 |
// add to the muon
|
| 319 |
if( ctrl.debug ) cerr << "FSR :: before return, oldpT=" << mu->Pt() << endl;
|
| 320 |
TLorentzVector muvec,phvec,newmuvec;
|
| 321 |
muvec.SetPtEtaPhiM( mu->Pt(), mu->Eta(), mu->Phi(), MUON_MASS);
|
| 322 |
phvec.SetPtEtaPhiM( thepf->Pt(), thepf->Eta(), thepf->Phi(), 0.);
|
| 323 |
pvec = phvec;
|
| 324 |
newmuvec = muvec+phvec;
|
| 325 |
// don't update the muon object, just simplelepton
|
| 326 |
// mu->SetPtEtaPhi (newmuvec.Pt(),
|
| 327 |
// newmuvec.Eta(),
|
| 328 |
// newmuvec.Phi());
|
| 329 |
lepvec[muonIndex].vec += phvec;
|
| 330 |
lepvec[muonIndex].fsrRecoveryAttempted = true;
|
| 331 |
return true;
|
| 332 |
}
|
| 333 |
return false;
|
| 334 |
}
|
| 335 |
|
| 336 |
|
| 337 |
|
| 338 |
//--------------------------------------------------------------------------------------------------
|
| 339 |
// typeII = "PFClusters linked to muons"
|
| 340 |
//--------------------------------------------------------------------------------------------------
|
| 341 |
bool recover_typeII_Photon( ControlFlags & ctrl,
|
| 342 |
mithep::Muon * mu,
|
| 343 |
const int muonIndex,
|
| 344 |
vector<SimpleLepton> &lepvec,
|
| 345 |
const mithep::Array<mithep::PFCandidate> * pfArr )
|
| 346 |
//--------------------------------------------------------------------------------------------------
|
| 347 |
{
|
| 348 |
if( lepvec[muonIndex].fsrRecoveryAttempted ) return false;
|
| 349 |
|
| 350 |
bool foundPF=false;
|
| 351 |
const mithep::PFCandidate * thepf;
|
| 352 |
for( int i=0; i<pfArr->GetEntries(); i++ ) {
|
| 353 |
if( !(PFnoPUflag[i]) ) continue; // my PF no PU hack
|
| 354 |
const mithep::PFCandidate *pf = (mithep::PFCandidate*)((*pfArr)[i]);
|
| 355 |
if( abs(pf->PFType()) == mithep::PFCandidate::eMuon
|
| 356 |
&& (mu->TrackerTrk()==pf->TrackerTrk()))
|
| 357 |
{
|
| 358 |
if(ctrl.debug) cout << "FSR :: t2, found pf muon, pt " << mu->Pt() << endl;
|
| 359 |
foundPF = true;
|
| 360 |
thepf = pf;
|
| 361 |
break;
|
| 362 |
}
|
| 363 |
}
|
| 364 |
|
| 365 |
if( foundPF ) {
|
| 366 |
double sintet = thepf->Pt()/thepf->E();
|
| 367 |
double phpt = thepf->EECal() * sintet;
|
| 368 |
if ( thepf->EECal() >= 2.0 && phpt >= 2.0 ) {
|
| 369 |
// don't update the muon object, just simplelepton
|
| 370 |
// mu->SetPtEtaPhi (mu->Pt()+phpt,
|
| 371 |
// mu->Eta(),
|
| 372 |
// mu->Phi());
|
| 373 |
TLorentzVector pvec;
|
| 374 |
pvec.SetPtEtaPhiM( phpt,mu->Eta(),mu->Phi(),0.);
|
| 375 |
lepvec[muonIndex].vec += pvec;
|
| 376 |
if(ctrl.debug) cout << "FSR :: t2, new pt " << lepvec[muonIndex].vec.Pt() << endl;
|
| 377 |
lepvec[muonIndex].fsrRecoveryAttempted = true;
|
| 378 |
return true;
|
| 379 |
}
|
| 380 |
}
|
| 381 |
|
| 382 |
return false;
|
| 383 |
}
|
