void pgsAnalysis::Loop()
{
double tHrec, tZ1m, tZ2m, tcosthetaStar, tPhi, tPhi1, tcostheta1, tcostheta2,tHrec_constr,tZ1m_constr, tZ2m_constr;
string ttype;
hists->Branch("Hrec", &tHrec);
hists->Branch("Z1m", &tZ1m);
hists->Branch("Z2m", &tZ2m);
hists->Branch("costhetaStar", &tcosthetaStar);
hists->Branch("Phi", &tPhi);
hists->Branch("Phi1", &tPhi1);
hists->Branch("costheta1", &tcostheta1);
hists->Branch("costheta2", &tcostheta2);
hists->Branch("type", &ttype);
//event type!!
int eeee, xxxx, eexx, xxee;
double Zmass = 91.19;
double vZmass;
if (pairing == 0){
vZmass = 91.19;
}
else{
vZmass = 45.;
}
TVectorT<double> elSum(4);
TVectorT<double> muSum(4);
//electrons array
vector<int> el; int elC = 0;
//muons array
vector<int> mu; int muC = 0;
//antielectrons array
vector<int> antiel; int antielC = 0;
//antimuons array
vector<int> antimu; int antimuC = 0;
vector<TVector3> leptons;
TVector3 lep1,lep2,lep3,lep4;
TVector3 Za, Zb, Zc, Zd, H;
int lCounter = 0;
int totaLlCounter = 0;
int goodEventCounter = 0;
int histCounter = 0;
if (fChain == 0) return;
int nentries = n;
// cout << " nentries are "<<nentries<<endl;
Long64_t nbytes = 0, nb = 0;
for (Long64_t jentry=0; jentry<nentries;jentry++) {
Long64_t ientry = LoadTree(jentry);
if (ientry < 0) break;
nb = fChain->GetEntry(jentry); nbytes += nb;
// if (Cut(ientry) < 0) continue;
el.clear();
antiel.clear();
mu.clear();
antimu.clear();
lCounter = 0;
eeee = 0;
xxxx = 0;
eexx = 0;
xxee = 0;
//particles identified by type, ntrk
for (int inst = 0; inst < npart; inst++){ // inst from "instance" on the scan tree
// cout<< " instance "<< inst <<endl;
// cout<< pT[inst]<< endl;
//fill el mu vectors
if ( typ[inst] == 1 && ntrk[inst] == -1){
el.push_back(inst);
elC++;
lCounter++;
totaLlCounter++;
}
if ( typ[inst] == 1 && ntrk[inst] == 1){
antiel.push_back(inst);
antielC++;
lCounter++;
totaLlCounter++;
}
if ( typ[inst] == 2 && ntrk[inst] == -1){
mu.push_back(inst);
muC++;
lCounter++;
totaLlCounter++;
}
if ( typ[inst] == 2 && ntrk[inst] == 1){
antimu.push_back(inst);
antimuC++;
lCounter++;
totaLlCounter++;
}
if ( (typ[inst] == 4 && jmas[inst] > 10. )|| (typ[inst] == 6 && pT[inst] > 10. )){
lCounter = 0; //dont count the event
}
}//end instance loop (particles in an event
// cout<< "leptons in the event are "<< lCounter<<endl;
// if (lCounter == 4) {
fillFlag = false;
// If else if loops reconstructing the particles according to the type 4e,4mu, 2e2mu
if (el.size() == 1 && mu.size() == 1 && antiel.size() == 1 && antimu.size() == 1){ //2e2m
goodEventCounter++;
lep1.SetPtEtaPhi( pT[el[0]], eta[el[0]] , phi[el[0]]); //set up of lepton four-vectors
lep2.SetPtEtaPhi( pT[antiel[0]], eta[antiel[0]] , phi[antiel[0]]);
lep3.SetPtEtaPhi( pT[mu[0]], eta[mu[0]] , phi[mu[0]]);
lep4.SetPtEtaPhi( pT[antimu[0]], eta[antimu[0]] , phi[antimu[0]]);
Za = lep1 + lep2;
Zb = lep3 + lep4;
mZ1 = sqrt(pow(lep1.Mag()+lep2.Mag(),2)-Za.Mag2()); // reconstruct z masses
mZ2 = sqrt(pow(lep3.Mag()+lep4.Mag(),2)-Zb.Mag2());
//select leading Z
if(mZ1 > mZ2) { Z1.SetVectM( Za, mZ1); Z2.SetVectM(Zb,mZ2); lep_min1.SetPtEtaPhiE(lep1.Pt(),lep1.Eta(), lep1.Phi(),lep1.Mag()); lep_plus1.SetPtEtaPhiE(lep2.Pt(),lep2.Eta(), lep2.Phi(),lep2.Mag()); lep_min2.SetPtEtaPhiE(lep3.Pt(),lep3.Eta(), lep3.Phi(),lep3.Mag()); lep_plus2.SetPtEtaPhiE(lep4.Pt(),lep4.Eta(), lep4.Phi(),lep4.Mag());eexx++;} //to set the highest mass the z
else { Z2.SetVectM( Za, mZ1); Z1.SetVectM(Zb,mZ2); lep_min2.SetPtEtaPhiE(lep1.Pt(),lep1.Eta(), lep1.Phi(),lep1.Mag()); lep_plus2.SetPtEtaPhiE(lep2.Pt(),lep2.Eta(), lep2.Phi(),lep2.Mag()); lep_min1.SetPtEtaPhiE(lep3.Pt(),lep3.Eta(), lep3.Phi(),lep3.Mag()); lep_plus1.SetPtEtaPhiE(lep4.Pt(),lep4.Eta(), lep4.Phi(),lep4.Mag());xxee++;}
fillFlag = true;
}
else if (el.size() == 2 && mu.size() == 0 && antiel.size() == 2 && antimu.size() == 0){ //4e
goodEventCounter++;
lep1.SetPtEtaPhi( pT[el[0]], eta[el[0]] , phi[el[0]]);
lep2.SetPtEtaPhi( pT[antiel[0]], eta[antiel[0]] , phi[antiel[0]]);
lep3.SetPtEtaPhi( pT[el[1]], eta[el[1]] , phi[el[1]]);
lep4.SetPtEtaPhi( pT[antiel[1]], eta[antiel[1]] , phi[antiel[1]]);
Za = lep1 + lep2;
Zb = lep3 + lep4;
Zc = lep1 + lep4;
Zd = lep3 + lep2;
double mZa = sqrt(pow(lep1.Mag()+lep2.Mag(),2)-Za.Mag2());
double mZb = sqrt(pow(lep3.Mag()+lep4.Mag(),2)-Zb.Mag2());
double mZc = sqrt(pow(lep1.Mag()+lep4.Mag(),2)-Zc.Mag2());
double mZd = sqrt(pow(lep2.Mag()+lep3.Mag(),2)-Zd.Mag2());
double s1a;
double s1b;
double s2a;
double s2b;
if ( pairing == 0){
s1a = pow(mZa-vZmass,2) + pow(mZb-Zmass,2);
s1b = pow(mZa-Zmass,2) + pow(mZb-vZmass,2);
s2a = pow(mZc-vZmass,2) + pow(mZd-Zmass,2);
s2b = pow(mZc-Zmass,2) + pow(mZd-vZmass,2);
}
else{
s1a = fabs(mZb-Zmass);
s1b = fabs(mZa-Zmass);
s2a = fabs(mZd-Zmass);
s2b = fabs(mZc-Zmass);
}
elSum[0] = s1a;
elSum[1] = s1b;
elSum[2] = s2a;
elSum[3] = s2b;
int min = TMath::LocMin(4, &elSum[0]);
if( (min == 0 || min == 1) ){
if(mZa > mZb) { Z1.SetVectM( Za, mZa); Z2.SetVectM(Zb,mZb); lep_min1.SetPtEtaPhiE(lep1.Pt(),lep1.Eta(), lep1.Phi(),lep1.Mag()); lep_plus1.SetPtEtaPhiE(lep2.Pt(),lep2.Eta(), lep2.Phi(),lep2.Mag()); lep_min2.SetPtEtaPhiE(lep3.Pt(),lep3.Eta(), lep3.Phi(),lep3.Mag()); lep_plus2.SetPtEtaPhiE(lep4.Pt(),lep4.Eta(), lep4.Phi(),lep4.Mag());} //to set the highest mass the z
else { Z2.SetVectM( Za, mZa); Z1.SetVectM(Zb,mZb); lep_min2.SetPtEtaPhiE(lep1.Pt(),lep1.Eta(), lep1.Phi(),lep1.Mag()); lep_plus2.SetPtEtaPhiE(lep2.Pt(),lep2.Eta(), lep2.Phi(),lep2.Mag()); lep_min1.SetPtEtaPhiE(lep3.Pt(),lep3.Eta(), lep3.Phi(),lep3.Mag()); lep_plus1.SetPtEtaPhiE(lep4.Pt(),lep4.Eta(), lep4.Phi(),lep4.Mag());}
}
else if( (min == 2 || min == 3) ){
if(mZc > mZd) { Z1.SetVectM( Zc, mZc); Z2.SetVectM(Zd,mZd); lep_min1.SetPtEtaPhiE(lep1.Pt(),lep1.Eta(), lep1.Phi(),lep1.Mag()); lep_plus1.SetPtEtaPhiE(lep4.Pt(),lep4.Eta(), lep4.Phi(),lep4.Mag()); lep_min2.SetPtEtaPhiE(lep3.Pt(),lep3.Eta(), lep3.Phi(),lep3.Mag()); lep_plus2.SetPtEtaPhiE(lep2.Pt(),lep2.Eta(), lep2.Phi(),lep2.Mag());} //to set the highest mass the z
else { Z2.SetVectM( Zc, mZc); Z1.SetVectM(Zd,mZd); lep_min2.SetPtEtaPhiE(lep1.Pt(),lep1.Eta(), lep1.Phi(),lep1.Mag()); lep_plus2.SetPtEtaPhiE(lep4.Pt(),lep4.Eta(), lep4.Phi(),lep4.Mag()); lep_min1.SetPtEtaPhiE(lep3.Pt(),lep3.Eta(), lep3.Phi(),lep3.Mag()); lep_plus1.SetPtEtaPhiE(lep2.Pt(),lep2.Eta(), lep2.Phi(),lep2.Mag());}
}
eeee++;
fillFlag = true;
}
else if(el.size() == 0 && mu.size() == 2 && antiel.size() == 0 && antimu.size() == 2 ) { //4m
goodEventCounter++;
lep1.SetPtEtaPhi( pT[mu[0]], eta[mu[0]] , phi[mu[0]]);
lep2.SetPtEtaPhi( pT[antimu[0]], eta[antimu[0]] , phi[antimu[0]]);
lep3.SetPtEtaPhi( pT[mu[1]], eta[mu[1]] , phi[mu[1]]);
lep4.SetPtEtaPhi( pT[antimu[1]], eta[antimu[1]] , phi[antimu[1]]);
Za = lep1 + lep2;
Zb = lep3 + lep4;
Zc = lep1 + lep4;
Zd = lep3 + lep2;
double mZa = sqrt(pow(lep1.Mag()+lep2.Mag(),2)-Za.Mag2());
double mZb = sqrt(pow(lep3.Mag()+lep4.Mag(),2)-Zb.Mag2());
double mZc = sqrt(pow(lep1.Mag()+lep4.Mag(),2)-Zc.Mag2());
double mZd = sqrt(pow(lep2.Mag()+lep3.Mag(),2)-Zd.Mag2());
double s1a;
double s1b;
double s2a;
double s2b;
if ( pairing == 0){
s1a = pow(mZa-vZmass,2) + pow(mZb-Zmass,2);
s1b = pow(mZa-Zmass,2) + pow(mZb-vZmass,2);
s2a = pow(mZc-vZmass,2) + pow(mZd-Zmass,2);
s2b = pow(mZc-Zmass,2) + pow(mZd-vZmass,2);
}
else{
s1a = fabs(mZb-Zmass);
s1b = fabs(mZa-Zmass);
s2a = fabs(mZd-Zmass);
s2b = fabs(mZc-Zmass);
}
muSum[0] = s1a;
muSum[1] = s1b;
muSum[2] = s2a;
muSum[3] = s2b;
int min = TMath::LocMin(4, &muSum[0]);
if( (min == 0 || min == 1) ){
if(mZa > mZb) { Z1.SetVectM( Za, mZa); Z2.SetVectM(Zb,mZb); lep_min1.SetPtEtaPhiE(lep1.Pt(),lep1.Eta(), lep1.Phi(),lep1.Mag()); lep_plus1.SetPtEtaPhiE(lep2.Pt(),lep2.Eta(), lep2.Phi(),lep2.Mag()); lep_min2.SetPtEtaPhiE(lep3.Pt(),lep3.Eta(), lep3.Phi(),lep3.Mag()); lep_plus2.SetPtEtaPhiE(lep4.Pt(),lep4.Eta(), lep4.Phi(),lep4.Mag());} //to set the highest mass the z
else { Z2.SetVectM( Za, mZa); Z1.SetVectM(Zb,mZb); lep_min2.SetPtEtaPhiE(lep1.Pt(),lep1.Eta(), lep1.Phi(),lep1.Mag()); lep_plus2.SetPtEtaPhiE(lep2.Pt(),lep2.Eta(), lep2.Phi(),lep2.Mag()); lep_min1.SetPtEtaPhiE(lep3.Pt(),lep3.Eta(), lep3.Phi(),lep3.Mag()); lep_plus1.SetPtEtaPhiE(lep4.Pt(),lep4.Eta(), lep4.Phi(),lep4.Mag());}
}
else if( (min == 2 || min == 3) ){
if(mZc > mZd) { Z1.SetVectM( Zc, mZc); Z2.SetVectM(Zd,mZd); lep_min1.SetPtEtaPhiE(lep1.Pt(),lep1.Eta(), lep1.Phi(),lep1.Mag()); lep_plus1.SetPtEtaPhiE(lep4.Pt(),lep4.Eta(), lep4.Phi(),lep4.Mag()); lep_min2.SetPtEtaPhiE(lep3.Pt(),lep3.Eta(), lep3.Phi(),lep3.Mag()); lep_plus2.SetPtEtaPhiE(lep2.Pt(),lep2.Eta(), lep2.Phi(),lep2.Mag());} //to set the highest mass the z
else { Z2.SetVectM( Zc, mZc); Z1.SetVectM(Zd,mZd); lep_min2.SetPtEtaPhiE(lep1.Pt(),lep1.Eta(), lep1.Phi(),lep1.Mag()); lep_plus2.SetPtEtaPhiE(lep4.Pt(),lep4.Eta(), lep4.Phi(),lep4.Mag()); lep_min1.SetPtEtaPhiE(lep3.Pt(),lep3.Eta(), lep3.Phi(),lep3.Mag()); lep_plus1.SetPtEtaPhiE(lep2.Pt(),lep2.Eta(), lep2.Phi(),lep2.Mag());}
}
xxxx++;
fillFlag = true;
}
if ( fillFlag == true && goodEventCounter < 25001) { //if it fullfills the specs then fill and find angles
rec_H = Z1 + Z2;
double Hmass = rec_H.M();
tHrec = Hmass;
// cout<<tHrec<<endl;
double Z1mass = Z1.M();
tZ1m = Z1mass;
double Z2mass = Z2.M();
tZ2m = Z2mass;
double ptlepp1 = lep_plus1.Pt();
double ptlepm1 = lep_min1.Pt();
double ptlepp2 = lep_plus2.Pt();
double ptlepm2 = lep_min2.Pt();
double dR1 = sqrt(pow(fabs(lep_min1.Eta() - lep_plus1.Eta()),2)+pow(fabs(lep_min1.DeltaPhi(lep_plus1)),2));
double dR2 = sqrt(pow(fabs(lep_min2.Eta() - lep_plus2.Eta()),2)+pow(fabs(lep_min2.DeltaPhi(lep_plus2)),2));
// if ( /*Hmass<120 || Hmass>130 || */Z1mass < 49 || Z1mass>107 || Z2mass < 12 || Z2mass> 115 ){continue;} //constrains
//filling the simple histogram values
h_Z1_m -> Fill(Z1.M());
h_Z1_E -> Fill(Z1.E());
h_Z1_Pt -> Fill(Z1.Pt());
h_Z1_eta -> Fill(Z1.Eta());
h_Z1_phi -> Fill(Z1.Phi());
h_Z2_m -> Fill(Z2.M());
h_Z2_E -> Fill(Z2.E());
h_Z2_Pt -> Fill(Z2.Pt());
h_Z2_eta -> Fill(Z2.Eta());
h_Z2_phi -> Fill(Z2.Phi());
h_rec_H_m -> Fill(Hmass);
h_rec_H_E -> Fill(rec_H.E());
h_rec_H_Pt -> Fill(rec_H.Pt());
h_rec_H_eta -> Fill(rec_H.Eta());
h_rec_H_phi -> Fill(rec_H.Phi());
h_lep_plus1_E -> Fill(lep_plus1.E());
h_lep_plus1_Pt -> Fill(ptlepp1);
h_lep_plus1_eta -> Fill(lep_plus1.Eta());
h_lep_plus1_phi -> Fill(lep_plus1.Phi());
h_lep_min1_E -> Fill(lep_min1.E());
h_lep_min1_Pt -> Fill(ptlepm1);
h_lep_min1_eta -> Fill(lep_min1.Eta());
h_lep_min1_phi -> Fill(lep_min1.Phi());
h_lep_plus2_E -> Fill(lep_plus2.E());
h_lep_plus2_Pt -> Fill(ptlepp2);
h_lep_plus2_eta -> Fill(lep_plus2.Eta());
h_lep_plus2_phi -> Fill(lep_plus2.Phi());
h_lep_min2_E -> Fill(lep_min2.E());
h_lep_min2_Pt -> Fill(ptlepm2);
h_lep_min2_eta -> Fill(lep_min2.Eta());
h_lep_min2_phi -> Fill(lep_min2.Phi());
//reconstructing the two lepton pairs Lorentz vectors
lpair1 = lep_plus1 + lep_min1;
lpair2 = lep_plus2 + lep_min2;
//constructing 3-vectors in the lab frame
lep_plus1_lab = lep_plus1.Vect();
lep_plus2_lab = lep_plus2.Vect(); //.Vect() gives 3 vector from 4vector
lep_min1_lab = lep_min1.Vect();
lep_min2_lab = lep_min2.Vect();
lpair1_lab = lep_plus1_lab.Cross(lep_min1_lab);
lpair2_lab = lep_plus2_lab.Cross(lep_min2_lab);
// cout << " pt of lepton pair1 on rest frame is: "<< lpair1.Perp()<<endl;
//Filling up Histograms with angles defined in the lab frame
h_angle_lab_pair1 -> Fill(lep_plus1_lab.Angle(lep_min1_lab));
h_angle_lab_pair2 -> Fill(lep_plus2_lab.Angle(lep_min2_lab));
//Filling up histograms with variables from articles
h_angle_lab_deleta1 -> Fill(fabs(lep_min1.Eta() - lep_plus1.Eta()));
h_angle_lab_delphi1 -> Fill(fabs(lep_min1.DeltaPhi(lep_plus1)));
h_angle_lab_deleta2 -> Fill(fabs(lep_min2.Eta() - lep_plus2.Eta()));
h_angle_lab_delphi2 -> Fill(fabs(lep_min2.DeltaPhi(lep_plus2)));
//Looking at the Higgs rest frame
TVector3 boost_rH = -rec_H.BoostVector(); //NOTE the minus sign! WHY - sign???
TVector3 boost_rZ1 = -Z1.BoostVector();
TVector3 boost_rZ2 = -Z2.BoostVector();
Higgs_rest = rec_H;
Z1_rH = Z1;
Z2_rH = Z2;
lep_p1_rH = lep_plus1; //
lep_m1_rH = lep_min1;
lep_p2_rH = lep_plus2;
lep_m2_rH = lep_min2;
lep_p1_rZ1 = lep_plus1;
lep_m2_rZ2 = lep_min2;
lep_p2_rZ2 = lep_plus2;
lep_m1_rZ1 = lep_min1;
//Boosting vectors to the Higgs rest frame
Higgs_rest.Boost(boost_rH);
Z1_rH.Boost(boost_rH);
Z2_rH.Boost(boost_rH);
lep_p1_rH.Boost(boost_rH);
lep_m1_rH.Boost(boost_rH);
lep_p2_rH.Boost(boost_rH);
lep_m2_rH.Boost(boost_rH);
//Boosting leptons to Z rest frames
lep_p1_rZ1.Boost(boost_rZ1);
lep_m1_rZ1.Boost(boost_rZ1);
lep_p2_rZ2.Boost(boost_rZ2);
lep_m2_rZ2.Boost(boost_rZ2);
//Setting 3Vectors in Higgs rest frame
Z3_1_rH = Z1_rH.Vect();
Z3_2_rH = Z2_rH.Vect();
lep3_plus1_rH = lep_p1_rH.Vect();
lep3_min1_rH = lep_m1_rH.Vect();
lep3_plus2_rH = lep_p2_rH.Vect();
lep3_min2_rH = lep_m2_rH.Vect();
TVector3 Z3_1plane_rH = lep3_plus1_rH.Cross(lep3_min1_rH); //wrong?
TVector3 Z3_2plane_rH = lep3_plus2_rH.Cross(lep3_min2_rH);
//Setting 3Vectors in Z1/Z2 rest frame
lep3_plus1_rZ1 = lep_p1_rZ1.Vect();
lep3_plus2_rZ2 = lep_p2_rZ2.Vect();
lep3_min1_rZ1 = lep_m1_rZ1.Vect();
lep3_min2_rZ2 = lep_m2_rZ2.Vect();
//Filling up histogram for the phi angle distribution
//pairnoume ta monadiaia dianysmata twn kathetwn pediwn, prwta ypologizoume to metro tous, meta eswteriko ginomeno, meta tokso tou costheta tous
double metro1 = sqrt((pow(Z3_1plane_rH.X(),2))+(pow(Z3_1plane_rH.Y(),2))+(pow(Z3_1plane_rH.Z(),2)));
double metro2 = sqrt((pow(Z3_2plane_rH.X(),2))+(pow(Z3_2plane_rH.Y(),2))+(pow(Z3_2plane_rH.Z(),2)));
TVector3 Z3_1plane_rH_un = Z3_1plane_rH.Unit();
TVector3 Z3_2plane_rH_un = Z3_2plane_rH.Unit();
TVector3 drtPlane = Z3_1plane_rH_un.Cross(Z3_2plane_rH_un);
double phi = acos(-Z3_1plane_rH_un.Dot(Z3_2plane_rH_un))*(Z3_1_rH.Dot(skata))/fabs(Z3_1_rH.Dot(skata));
h_angle_rH_phi -> Fill( phi );
tPhi = phi;
//****Phi one angle , same procedure as before. Now the plane is the first Z boson vector with beam axis, so they form a plane, phi1 is angle between this plane and the Z1 plane (apo to decay twn 2 leptoniwn)
TVector3 niScatter_un = (beamAxis.Cross(Z3_1_rH)).Unit();
TVector3 drtPlane2 = Z3_1plane_rH_un.Cross(niScatter_un);
double phiOne = acos(Z3_1plane_rH_un.Dot(niScatter_un))*(Z3_1_rH.Dot(skata2))/fabs(Z3_1_rH.Dot(skata2));
h_angle_rH_phiOne -> Fill( phiOne );
tPhi1 = phiOne;
//Filling up histogram for theta* angle: Z1/Z2 with Higgs boost vector
h_angle_rH_thetaZ2 -> Fill(Z3_2_rH.CosTheta());
double cosThetaStar = Z3_1_rH.CosTheta();
h_angle_rH_thetaZ1 -> Fill(cosThetaStar);
tcosthetaStar = cosThetaStar;
// boosting the z to the other z frame
TLorentzVector Z_1_rZ2 = Z1;
Z_1_rZ2.Boost(boost_rZ2);
TVector3 Z3_1_rZ2 = Z_1_rZ2.Vect();
TLorentzVector Z_2_rZ1 = Z2;
Z_2_rZ1.Boost(boost_rZ1);
TVector3 Z3_2_rZ1 = Z_2_rZ1.Vect();
double cosTheta1 = cos(lep3_min1_rZ1.Angle(-Z3_2_rZ1));
double cosTheta2 = cos(lep3_min2_rZ2.Angle(-Z3_1_rZ2));
h_angle_rZ1_lp1Z1 -> Fill(cos(lep3_plus1_rZ1.Angle(-Z3_2_rZ1)));
h_angle_rZ1_lm1Z1 -> Fill(cosTheta1); // theta1
h_angle_rZ2_lp2Z2 -> Fill(cos(lep3_plus2_rZ2.Angle(-Z3_1_rZ2)));
h_angle_rZ2_lm2Z2 -> Fill(cosTheta2); // theta2
tcostheta1 = cosTheta1;
tcostheta2 = cosTheta2;
h_angle_rH_delphi1 -> Fill(fabs(lep_p1_rH.DeltaPhi(lep_m1_rH)));
h_angle_rH_delphi2 -> Fill(fabs(lep_p2_rH.DeltaPhi(lep_m2_rH)));
h_mZ1mZ2 -> Fill(Z1.M(),Z2.M());
h_mVsPtZ1 -> Fill(Z1.M(),Z1.Pt());
h_delphi1VsPtZ1_lab -> Fill(Z1.Pt(),fabs(lep_min1.DeltaPhi(lep_plus1)));
h_delphi2VsPtZ2_lab -> Fill(Z2.Pt(),fabs(lep_min2.DeltaPhi(lep_plus2)));
if (eexx ==1){ttype = "eexx";}
else if(xxee ==1){ttype = "xxee";}
else if(eeee ==1){ttype = "eeee";}
else if(xxxx ==1){ttype = "xxxx";}
hists->Fill();
histCounter++;
hists->Close();
} //end if fill
////////////// fill out the decay type
// filling the TTree
}//end entries loop (events)
//some regular reports
cout<<endl;
cout<<" good events are "<<goodEventCounter<<endl;
cout<<" we see % "<< (double) goodEventCounter/n <<endl;
cout<<endl;
cout<<" histogram fills are "<<histCounter<<endl;
// cout<<" we see % "<< (double) goodEventCounter/n <<endl;
}//end loop void
