Angular analysis of B+->K*+(K+pi0)mumu
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//Renata Kopecna
#include <design.hh>
#include <constants.hh>
#include <helpers.hh>
#include <TROOT.h>
#include <TBox.h>
#include <TPaveText.h>
#include <TF1.h>
#include <TLegend.h>
#include <TMultiGraph.h>
#include <TStyle.h>
#include <TFile.h>
#include <TGaxis.h>
#include <sstream>
#include <iostream>
//=========================================
//
// Latex in plots
//
//=========================================
std::string latex_decay(bool DTF){
//return "K_{S}^{0}#pi^{+}#mu^{+}#mu^{-}";
if (DTF) return "K^{+}#pi^{0}#mu^{+}#mu^{-}";
else return "#K^{+}#gamma#gamma#mu^{+}#mu^{-}";
}
std::string latex_Kst_decay(bool DTF){
if (DTF) return "K^{+}#pi^{0}";
else return "#K^{+}#gamma#gamma";
}
std::string MeVc(){
return "MeV";
}
std::string GeVc(){
return "GeV";
}
std::string GeVc_2(){
return "GeV^{2}";
}
std::string latex_pull(){
return "(x-x_{0})/#sigma";
}
std::string latex_angle(std::string angle, bool &is_ctl, bool &is_ctk, bool &is_phi){
if(strcmp(angle.c_str(), "ctk") == 0){
is_ctk = true;
return "cos(#Theta_{K})";
}
else if(strcmp(angle.c_str(), "ctl") == 0){
is_ctl = true;
return "cos(#Theta_{L})";
}
else if(strcmp(angle.c_str(), "phi") == 0){
is_phi = true;
return "#phi [rad]";
}
return "";
}
//Define the angles as chars, because ROOT
//Very not cool, but also very not cool
//of ROOT to not accept strings and I cannot be bothered
const char *LATEX_Q2_CH() { return LATEX_Q2.c_str(); }
const char *LATEX_TL_CH() { return LATEX_TL.c_str(); }
const char *LATEX_CTL_CH(){ return LATEX_CTL.c_str();}
const char *LATEX_TK_CH() { return LATEX_TK.c_str(); }
const char *LATEX_CTK_CH(){ return LATEX_CTK.c_str();}
const char *LATEX_PHI_CH(){ return LATEX_PHI.c_str();}
std::string q2_label(double low_q2, double high_q2){
std::ostringstream qqbin; //TODO
qqbin << std::fixed << std::setprecision(2) <<low_q2<< " < q^{2} < " << high_q2;
return qqbin.str();
}
//=========================================
//
// General
//
//=========================================
void set_gStyle(){
gStyle->SetOptStat(0);
gStyle->SetOptFit(0);
gStyle->SetLabelFont(132, "xyz");
gStyle->SetTitleFont(132, "xyz");
gStyle->SetLegendFont(132);
gStyle->SetStatFont(132);
gStyle->SetPaintTextFormat(".1f");
}
//Save canvas with a given name and automatically append the type
//Type should be specified without the dot, so eg "eps" instead of ".eps
void saveTCanvas(TCanvas *c, std::string name, std::string type){
c->Print((name+"."+type).c_str(), type.c_str());
return;
}
//Save several file types in one go
void saveTCanvas(TCanvas *c, std::string name, std::vector<std::string> types){
for (auto type: types) saveTCanvas(c,name,type);
return;
}
TLine *threeSigmaLine(double min, double max, bool plus){
int sigma = plus ? +3.0 : -3.0;
TLine * line = new TLine(min, sigma, max, sigma);
line->SetLineStyle(5);
line->SetLineWidth(gStyle->GetLineWidth());
return line;
}
TLine *oneSigmaLine(double min, double max, bool plus){
int sigma = plus ? +1.0 : -1.0;
TLine * line = new TLine(min, sigma, max, sigma);
line->SetLineStyle(7);
line->SetLineWidth(gStyle->GetLineWidth());
return line;
}
void plotAndSave(TH1D *hist, std::string canvasName, std::string targetPath, std::string plotType){
TCanvas* cnvs = new TCanvas(canvasName.c_str(), canvasName.c_str(), 1600, 1200);
cnvs->cd();
hist->Draw();
saveTCanvas(cnvs,targetPath, plotType);
delete cnvs;
return;
}
void plotAndSave(TH2D *hist, std::string canvasName, std::string targetPath, std::string plotType){
TCanvas* cnvs = new TCanvas(canvasName.c_str(), canvasName.c_str(), 1600, 1200);
cnvs->cd();
hist->Draw("COLZ");
saveTCanvas(cnvs,targetPath, plotType);
delete cnvs;
return;
}
void plotAndSaveWithLine(TH1D* hist, TF1 *line, std::string canvasName, std::string targetPath, std::string plotType){
//Create canvas
TCanvas* cnvs = new TCanvas(canvasName.c_str(), canvasName.c_str(), 1600, 1200);
cnvs->cd();
//Add legend
//TLatex cannot do break lines and I cannot. Even.
TPaveText *leg = new TPaveText(0.55,0.65,0.87,0.87);
leg->Paint("NDC");
leg->SetFillColor(kWhite);
leg->SetTextFont(132);
//Loop over params and print them
for (int n = 0; n < line->GetNpar(); n++){
std::ostringstream sParams;
sParams << line->GetParName(n) << ": " << std::fixed << std::setprecision(4) << line->GetParameter(n) << "#pm" << line->GetParError(n);
leg->AddText(sParams.str().c_str());
}
//Draw
hist->Draw("E1");
line->Draw("same");
leg->Draw("same");
//Save
cnvs->Print((targetPath+"."+plotType).c_str(), plotType.c_str());
//Delete and return
delete leg;
delete cnvs;
return;
}
//Sets TLatex
TLatex *getPrettyTex(double TextFontSize, int TextAlign){
TLatex *tex = new TLatex();
tex->SetNDC(true);
tex->SetTextFont(132);
tex->SetTextSize(TextFontSize);
tex->SetTextAlign(TextAlign);
return tex;
}
//Add myThesis tag
void addThesistag(double x = 0.6, double y = 0.85, int color = 1, double scaling = 1.0){
if (!PLOT_THISTHESIS_TAG) return;
TLatex* lhcbtext = getPrettyTex(0.07*scaling, 13);
lhcbtext->SetTextColor(color);
lhcbtext->DrawLatex(x,y,THISTHESIS_TAG.c_str());
return;
}
//Add lhcb tag
void addLHCbtag(double x = 0.6, double y = 0.85, std::string suffix = "", int color = 1, double scaling = 1.0){
TLatex* lhcbtext = getPrettyTex(0.07*scaling, 13);
lhcbtext->SetTextColor(color);
lhcbtext->DrawLatex(x,y,("LHCb "+suffix).c_str());
return;
}
//=========================================
//
// Angular correction plots
//
//=========================================
//plot eff histograms for angular corrections
void plotAngular(TH1D *hist, TH1D *moments, bool write,std::string name,
std::string appendix, std::string q2region,
TLatex *tex, std::string folderName){
TCanvas* c0 = new TCanvas("c0", "c0", 1600, 1200);
c0->cd();
hist->Scale(hist->GetNbinsX()/hist->Integral());
hist->SetMinimum(0.0);
hist->Draw();
hist->GetYaxis()->SetTitle("Normalized entries (a.u.)");
moments->Scale(moments->GetNbinsX()/moments->Integral());
addLHCbtag(0.15,0.27,"simulation",1,1.0);
addThesistag(0.15,0.20,1,0.9);
moments->Draw("samel");
if (q2region != "") tex->DrawLatex(0.85, 0.15, q2region.c_str());
if (write) saveTCanvas(c0,folderName+name+appendix,"eps");
delete c0;
}
//Overload the plot without plotting q2 region
void plotAngular(TH1D *hist, TH1D *moments, bool write,std::string name, std::string appendix, std::string folderName){
TLatex *tex = new TLatex();
plotAngular(hist, moments, write, name, appendix, "", tex, folderName);
}
//plot 2D histograms for angular corrections
void plotAngular(TH2D *hist, TH2D *moments, bool write, std::string name, std::string appendix, std::string q2region, TLatex *tex, std::string folderName){
TCanvas* c0 = new TCanvas("c0", "c0", 1600, 800);
c0->Divide(2,1);
c0->cd(1);
hist->Scale(hist->GetNbinsX()*hist->GetNbinsY()/hist->Integral());
hist->SetMinimum(0.0);
hist->SetMaximum(1.4);
hist->Draw("colz");
c0->cd(2);
moments->Scale(moments->GetNbinsX()*moments->GetNbinsY()/moments->Integral());
moments->SetMinimum(0.0);
moments->SetMaximum(1.4);
moments->Draw("colz");
if (q2region != "") tex->DrawLatex(0.85, 0.15, q2region.c_str());
if (write) saveTCanvas(c0,folderName+name+appendix,"eps");
delete c0;
}
//Overload the plot without plotting q2 region
void plotAngular(TH2D *hist, TH2D *moments, bool write,std::string name, std::string appendix, std::string folderName){
TLatex *tex = new TLatex();
plotAngular(hist, moments, write, name, appendix, "", tex, folderName);
}
//Plot all the angular corrections in one canvas
void plotAngularInOne(TCanvas *c, int whichC, TH1D *moments, TH1D *ub, TH1D *hist, TH1D* ml, bool run_minuit, double q2min, double q2max, double y, bool cross){
c->cd(whichC)->SetMargin(0.15,0.05,0.1,0.05);
moments->Draw("l");
TLine* line= new TLine();
line->SetLineStyle(kDashed);
if (cross){
line->SetLineColor(kGray+1);
line->DrawLine(q2min, -0.5, q2max, +0.5);
line->DrawLine(q2min, +0.5, q2max, -0.5);
}
else{
ub->Draw("same");
hist->Draw("same");
if (run_minuit) ml->Draw("lsame");
line->SetLineColor(kRed);
line->DrawLine(q2min, y, q2max, y);
}
}
//Label axes for angular correction polynomial scan
void labelAngularScan(std::vector<int>scan_low, std::vector<int>scan_range,TH2D *hist){
//label the x-axis
//loop over the range in thetak and thetal and print all possible combination
for(int tk = 0; tk < scan_range.at(1); tk++){
for(int tl = 0; tl < scan_range.at(2); tl++){
hist->GetXaxis()->SetBinLabel(tk * scan_range.at(2) + tl + 1, //+1 because bins start at 1
("#bf{"+std::to_string(tk+scan_low.at(1))+"} - "+std::to_string(tl+scan_low.at(2))).c_str());
}
}
//label the y-axis
for(int qq = 0; qq < scan_range.at(0); qq++){
for(int fi =0; fi < scan_range.at(3); fi++){
hist->GetYaxis()->SetBinLabel(qq * scan_range.at(3) + fi + 1,
("#bf{"+std::to_string(qq+scan_low.at(0))+"} - "+std::to_string(fi+scan_low.at(3))).c_str());
}
}
//draw labels on x-axis vertically
hist->GetXaxis()->LabelsOption("v");
return;
}
//=========================================
//
// Fit results plots
//
//=========================================
int design_pull_basic(TH1D *pull, Float_t textsize, double eff_pullHeight){
pull->GetXaxis()->SetNoExponent(); //<-- spoils MaxDigits settings, so don't use it on other axis
pull->GetXaxis()->SetNdivisions(gStyle->GetNdivisions("X"));
pull->GetYaxis()->SetTitleSize(textsize/eff_pullHeight);
pull->GetYaxis()->SetLabelSize(textsize/eff_pullHeight);
pull->GetYaxis()->SetTitleOffset(gStyle->GetTitleOffset()*eff_pullHeight);
return 0;
}
int design_pull(TH1D *pull, Color_t lineColor, Color_t fillColor, double eff_pullHeight, double pullFrameRange){
Float_t textsize = gStyle->GetTextSize();
pull->GetXaxis()->SetTitleOffset(1.05);
design_pull_basic(pull, textsize, eff_pullHeight);
pull->GetXaxis()->SetTitleSize (textsize/eff_pullHeight);
pull->GetXaxis()->SetLabelSize (textsize/eff_pullHeight);
pull->GetXaxis()->SetTickLength (pull->GetXaxis()->GetTickLength()/(eff_pullHeight/(1-eff_pullHeight)));
pull->GetYaxis()->CenterTitle();
pull->GetYaxis()->SetNdivisions (3, 9, 0, kTRUE);//gStyle->GetNdivisions("Y"));
pull->GetYaxis()->SetRangeUser (-pullFrameRange, pullFrameRange);
pull->SetFillColor(fillColor);
pull->SetLineColor(lineColor);
pull->SetLineWidth(1);
return 0;
}
int design_pull(TGraphErrors *pull, Color_t lineColor, Color_t fillColor, double eff_pullHeight, double pullFrameRange){
Float_t textsize = gStyle->GetTextSize();
pull->GetXaxis()->SetTitleOffset(1.05);
pull->GetXaxis()->SetNoExponent(); //<-- spoils MaxDigits settings, so don't use it on other axis
pull->GetYaxis()->SetTitleSize(textsize/eff_pullHeight);
pull->GetYaxis()->SetLabelSize(textsize/eff_pullHeight);
pull->GetYaxis()->SetTitleOffset(gStyle->GetTitleOffset()*eff_pullHeight);
pull->GetXaxis()->SetTitleSize (textsize/eff_pullHeight);
pull->GetXaxis()->SetLabelSize (textsize/eff_pullHeight);
pull->GetXaxis()->SetTickLength (pull->GetXaxis()->GetTickLength()/(eff_pullHeight/(1-eff_pullHeight)));
pull->GetYaxis()->CenterTitle();
pull->GetYaxis()->SetRangeUser (-pullFrameRange, pullFrameRange);
pull->SetFillColor(fillColor);
pull->SetLineColor(lineColor);
pull->SetLineWidth(1);
return 0;
}
void drawResonances(TCanvas *c, double min, double max){
c->cd();
TBox* box = new TBox();
box->SetFillColor(21);
box->SetLineColor(21);
box->SetFillStyle(1001);
box->DrawBox(0.98, min, 1.10, max);
box->DrawBox(8.0, min, 11.0, max);
box->DrawBox(12.5, min, 15.0, max);
c->Update(); //Probably not needed, but just ot be sure
return;
}
void drawResonances(TPad *c, double min, double max){
c->cd();
TBox* box = new TBox();
box->SetFillColor(21);
box->SetLineColor(21);
box->SetFillStyle(1001);
box->DrawBox(0.98, min, 1.10, max);
box->DrawBox(8.0, min, 11.0, max);
box->DrawBox(12.5, min, 15.0, max);
c->Update(); //Probably not needed, but just ot be sure
return;
}
void designTGraph(TGraphErrors *graph, std::string title, std::string xAxisName, std::string yAxisName, Color_t color, Int_t markerStyle){
graph->SetName(title.c_str());
graph->SetLineColor(color);
//graph->SetLineWidth(0);
graph->SetMarkerStyle(markerStyle);
graph->SetMarkerColor(color);
graph->GetXaxis()->SetTitle(xAxisName.c_str());
graph->GetYaxis()->SetTitle(yAxisName.c_str());
graph->GetXaxis()->SetTitleOffset(1.0);
graph->GetYaxis()->SetTitleOffset(1.7);
graph->SetTitle("");
graph->GetXaxis()->SetLabelSize(0.09);
graph->GetYaxis()->SetLabelSize(0.09);
graph->GetXaxis()->SetTitleSize(0.07);
graph->GetYaxis()->SetTitleSize(0.05);
return;
}
void designMultiGraph(TMultiGraph *multGraph, std::string title, std::string xAxisName, std::string yAxisName){
//One needs to draw the multGraph first!
multGraph->SetName(title.c_str());
multGraph->GetXaxis()->SetTitle(xAxisName.c_str());
multGraph->GetYaxis()->SetTitle(yAxisName.c_str());
gStyle->SetOptStat(0);
multGraph->GetXaxis()->SetTitleOffset(1.0);
multGraph->GetYaxis()->SetTitleOffset(1.4);
multGraph->SetTitle("");
multGraph->GetXaxis()->SetLabelSize(0.05);
multGraph->GetYaxis()->SetLabelSize(0.05);
multGraph->GetXaxis()->SetTitleSize(0.05);
multGraph->GetYaxis()->SetTitleSize(0.055);
return;
}
int design_YieldInQ2(int Run, TGraphErrors *graphSig, TGraphErrors *graphBkg, TGraphErrors *graphSignificance, TGraphErrors *CMS, bool fixRange, std::string savePath, std::vector<std::string> extensions){
std::string mainName = "Q2_Run" + std::to_string(Run);
double y_scale = 1.5;
double y_scale_1 = (Run==1) ? 2.5 : 1.75;
//Create a TCanvas
TCanvas *c = new TCanvas(mainName.c_str(),mainName.c_str(),750, 575);
c->SetRightMargin(0.13);
c->SetLeftMargin(0.23);
c->SetTopMargin(0.075);
c->SetBottomMargin(0.12);
c->cd();
designTGraph(graphSig,"Signal","Q2","Yield",kBlack,20);
designTGraph(graphBkg,"Background","Q2","Yield",kRed,20);
graphSig->SetLineStyle(1);
graphSig->SetLineWidth(1);
graphSig->SetMarkerSize(0.5);
graphBkg->SetLineStyle(1);
graphBkg->SetLineWidth(1);
graphBkg->SetMarkerSize(0.65);
designTGraph(graphSignificance,"Significance","Q2","S/(S+B)",kBlue,20);
designTGraph(CMS,"Significance_CMS","Q2","S/(S+B)",kGreen+2,20);
graphSignificance->GetYaxis()->SetRangeUser(0.0,graphSignificance->GetY()[0]*y_scale);
graphSignificance->GetXaxis()->SetRangeUser(Q2_MIN_RANGE,Q2_MAX_RANGE);
CMS->GetXaxis()->SetRangeUser(Q2_MIN_RANGE,Q2_MAX_RANGE);
graphSignificance->SetLineWidth(3);
CMS->SetLineWidth(3);
//Create multigraphs
TMultiGraph *mg = new TMultiGraph();
mg->Add(graphSig,"AP");
mg->Add(graphBkg,"AP");
mg->Draw("AP");
mg->GetYaxis()->SetRangeUser(0.0,graphBkg->GetY()[1]*y_scale);
mg->GetXaxis()->SetRangeUser(Q2_MIN_RANGE,Q2_MAX_RANGE);
designMultiGraph(mg,"","q^{2} [GeV^{2}]","Yield");
TMultiGraph *mg_FoM = new TMultiGraph();
mg_FoM->Add(graphSignificance,"AP");
mg_FoM->Add(CMS,"AP");
mg_FoM->Draw("AP");
mg_FoM->GetXaxis()->SetRangeUser(Q2_MIN_RANGE,Q2_MAX_RANGE);
designMultiGraph(mg_FoM,"","q^{2} [GeV^{2}]","S/(S+B)");
//Create two pads (to get significance y-axis on the right)
TPad *pad1 = new TPad("pad1","",0,0,1,1);
TPad *pad2 = new TPad("pad2","",0,0,1,1);
pad2->SetFillStyle(4000); //will be transparent
pad2->SetFrameFillStyle(0);
pad1->SetRightMargin(0.13);
pad1->SetLeftMargin(0.15);
pad1->SetTopMargin(0.07);
pad1->SetBottomMargin(0.12);
pad2->SetRightMargin(0.13);
pad2->SetLeftMargin(0.15);
pad2->SetTopMargin(0.07);
pad2->SetBottomMargin(0.12);
pad1->Draw();
pad1->cd();
//Add legends
TLegend *leg = new TLegend(0.15,0.93,0.52,0.82);
leg->AddEntry(graphSig, "Signal yield","l");
leg->AddEntry(graphBkg, "Background yield","l");
TLegend *legSignificance = new TLegend(0.52,0.93,0.8,0.82);
legSignificance->AddEntry(graphSignificance, "Significance","l");
legSignificance->AddEntry(CMS, "CMS","l");
//Plot it
pad1->cd();
gStyle->SetGridColor(kGray);
pad1->SetGridy();
pad1->SetGridx();
mg->Draw("SAME");
mg->GetYaxis()->SetTitle("Yield");
mg->GetYaxis()->SetRangeUser(0.0,graphBkg->GetY()[1]*y_scale);
mg->GetXaxis()->SetRangeUser(Q2_MIN_RANGE,Q2_MAX_RANGE);
mg->GetXaxis()->SetLabelSize(0);
mg->GetYaxis()->SetTickLength(0);
leg->Draw("SAME");
pad1->Update();
c->cd();
pad2->Draw();
pad2->cd();
//Get axis on the left side
TGaxis *axis = new TGaxis(Q2_MAX_RANGE,0.0,Q2_MAX_RANGE,graphSignificance->GetY()[0]*y_scale_1,0,graphSignificance->GetY()[0]*y_scale_1,510,"+L");
axis->SetTitle("S/sqrt(S+B)");
axis->SetTextFont(21);
mg_FoM->Draw("AP");
mg_FoM->GetXaxis()->SetRangeUser(Q2_MIN_RANGE,Q2_MAX_RANGE);
mg_FoM->GetYaxis()->SetRangeUser(0.0,graphSignificance->GetY()[0]*y_scale_1);
mg_FoM->GetYaxis()->SetLabelSize(0);
mg_FoM->GetYaxis()->SetTickLength(0);
mg_FoM->GetYaxis()->SetTitle("");
axis->Draw("SAME");
legSignificance->Draw("SAME");
pad2->Update();
c->cd();
//Save it
if (!fixRange) savePath = savePath + "_sigma";
TFile *file = new TFile ((savePath+".root").c_str(), "RECREATE");
file->cd();
graphSig->Write();
graphBkg->Write();
graphSignificance->Write();
CMS->Write();
c->Write();
file->Close();
saveTCanvas(c,savePath,extensions);
return 0;
}
int design_SignificanceInQ2(int Run, TGraphErrors *graphSignificance, TGraphErrors *CMS, bool fixRange, std::string savePath, std::vector<std::string>extensions){
std::string mainName = "Q2_Run" + std::to_string(Run);
double y_scale = 1.4;
//Create a TCanvas
TCanvas *c = new TCanvas(mainName.c_str(),mainName.c_str(),750, 600);
c->SetRightMargin(0.13);
c->SetLeftMargin(0.15);
c->SetTopMargin(0.07);
c->SetBottomMargin(0.12);
gStyle->SetGridColor(kGray);
c->SetGridy();
c->SetGridx();
c->SetBottomMargin(0.16);
designTGraph(graphSignificance,"Significance","Q2","S/(S+B)",kBlue,20);
designTGraph(CMS,"Significance_CMS","Q2","S/(S+B)",kGreen+2,20);
graphSignificance->GetYaxis()->SetRangeUser(0.0,graphSignificance->GetY()[0]*y_scale);
graphSignificance->GetXaxis()->SetRangeUser(Q2_MIN_RANGE,Q2_MAX_RANGE);
CMS->GetXaxis()->SetRangeUser(Q2_MIN_RANGE,Q2_MAX_RANGE);
graphSignificance->SetLineWidth(3);
CMS->SetLineWidth(3);
//Create multigraph
TMultiGraph *mg_FoM = new TMultiGraph();
mg_FoM->Add(graphSignificance,"AP");
mg_FoM->Add(CMS,"AP");
mg_FoM->Draw("AP");
designMultiGraph(mg_FoM,"","q^{2} [GeV^{2}]","S/(S+B)");
//Add legend
TLegend *legSignificance = new TLegend(0.35,0.9,0.65,0.75);
legSignificance->AddEntry(graphSignificance, "Significance","l");
legSignificance->AddEntry(CMS, "CMS","l");
//Plot it
c->cd();
mg_FoM->Draw("AP");
mg_FoM->GetYaxis()->SetTitle("S/(S+B)");
mg_FoM->GetXaxis()->SetRangeUser(Q2_MIN_RANGE,Q2_MAX_RANGE);
mg_FoM->GetYaxis()->SetRangeUser(0.0,graphSignificance->GetY()[0]*y_scale);
mg_FoM->GetXaxis()->SetTitle("q^{2} [GeV^{2}]");
legSignificance->Draw("SAME");
c->Update();
//Save it
if (!fixRange) savePath = savePath + "_sigma";
TFile *file = new TFile ((savePath+".root").c_str(), "RECREATE");
file->cd();
graphSignificance->Write();
CMS->Write();
c->Write();
file->Close();
saveTCanvas(c,savePath,extensions);
return 0;
}