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ztonunu1.c
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ztonunu1.c
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#include "TCanvas.h"
#include "RooRealVar.h"
#include "RooFormulaVar.h"
#include "RooGaussian.h"
#include "RooPoisson.h"
#include "RooArgSet.h"
#include "RooConstVar.h"
#include "RooWorkspace.h"
#include "RooProdPdf.h"
#include "RooDataSet.h"
#include "RooFitResult.h"
#include "RooStats/ProfileLikelihoodCalculator.h"
#include "RooStats/LikelihoodInterval.h"
#include "RooStats/LikelihoodIntervalPlot.h"
using namespace RooFit ;
using namespace RooStats ;
void ztonunu1() {
// RooMsgService::instance().addStream(DEBUG,Topic(Tracing),ClassName("RooPoisson"),OutputFile("debug.log")) ;
float acc_mm_mean( 0.98 ) ; float acc_mm_err( 0.02 ) ;
float acc_ee_mean( 0.98 ) ; float acc_ee_err( 0.02 ) ;
float eff_mm_mean( 0.77 ) ; float eff_mm_err( 0.08 ) ;
float eff_ee_mean( 0.76 ) ; float eff_ee_err( 0.08 ) ;
RooRealVar* rv_Nsbee = new RooRealVar( "Nsbee" ,"Nsbee" , 0., 100. ) ;
RooRealVar* rv_Nsbmm = new RooRealVar( "Nsbmm" ,"Nsbmm" , 0., 100. ) ;
RooRealVar* rv_Nsigee = new RooRealVar( "Nsigee" ,"Nsigee" , 0., 100. ) ;
RooRealVar* rv_Nsigmm = new RooRealVar( "Nsigmm" ,"Nsigmm" , 0., 100. ) ;
rv_Nsbee->setVal( 5 ) ;
rv_Nsbmm->setVal( 3 ) ;
rv_Nsigee->setVal( 4 ) ;
rv_Nsigmm->setVal( 3 ) ;
RooRealVar* rv_mu_Znnsb = new RooRealVar( "mu_Znnsb" , "mu_Znnsb" , 0., 100. ) ;
RooRealVar* rv_mu_Znnsig = new RooRealVar( "mu_Znnsig" , "mu_Znnsig" , 0., 100. ) ;
rv_mu_Znnsb->setVal( 37 ) ; // starting value
rv_mu_Znnsig->setVal( 17. ) ; // starting value
RooRealVar* rv_bfRatio = new RooRealVar( "bfRatio", "bfRatio", 0., 10. ) ;
rv_bfRatio->setVal( 5.95 ) ;
rv_bfRatio->setConstant( kTRUE ) ;
RooRealVar* rv_acc_mm = new RooRealVar( "acc_mm", "acc_mm", 0.001, 1.000 ) ;
RooRealVar* rv_acc_ee = new RooRealVar( "acc_ee", "acc_ee", 0.001, 1.000 ) ;
RooRealVar* rv_eff_mm = new RooRealVar( "eff_mm", "eff_mm", 0.001, 1.000 ) ;
RooRealVar* rv_eff_ee = new RooRealVar( "eff_ee", "eff_ee", 0.001, 1.000 ) ;
rv_acc_mm->setVal( acc_mm_mean ) ;
rv_acc_ee->setVal( acc_ee_mean ) ;
rv_eff_mm->setVal( eff_mm_mean ) ;
rv_eff_ee->setVal( eff_ee_mean ) ;
RooRealVar* rv_lumi_ratio = new RooRealVar( "lumi_ratio", "lumi_ratio", 0., 10. ) ;
rv_lumi_ratio -> setVal( 686./869. ) ;
rv_lumi_ratio -> setConstant( kTRUE) ;
RooFormulaVar* rv_mu_Zeesb = new RooFormulaVar( "mu_Zeesb",
"mu_Znnsb * ( acc_ee * eff_ee / (bfRatio*lumi_ratio) )",
RooArgSet( *rv_mu_Znnsb, *rv_acc_ee, *rv_eff_ee, *rv_bfRatio, *rv_lumi_ratio ) ) ;
RooFormulaVar* rv_mu_Zmmsb = new RooFormulaVar( "mu_Zmmsb",
"mu_Znnsb * ( acc_mm * eff_mm / (bfRatio*lumi_ratio) )",
RooArgSet( *rv_mu_Znnsb, *rv_acc_mm, *rv_eff_mm, *rv_bfRatio, *rv_lumi_ratio ) ) ;
RooFormulaVar* rv_mu_Zeesig = new RooFormulaVar( "mu_Zeesig",
"mu_Znnsig * ( acc_ee * eff_ee / (bfRatio*lumi_ratio) )",
RooArgSet( *rv_mu_Znnsig, *rv_acc_ee, *rv_eff_ee, *rv_bfRatio, *rv_lumi_ratio ) ) ;
RooFormulaVar* rv_mu_Zmmsig = new RooFormulaVar( "mu_Zmmsig",
"mu_Znnsig * ( acc_mm * eff_mm / (bfRatio*lumi_ratio) )",
RooArgSet( *rv_mu_Znnsig, *rv_acc_mm, *rv_eff_mm, *rv_bfRatio, *rv_lumi_ratio ) ) ;
RooFormulaVar* rv_n_sbee = new RooFormulaVar( "n_sbee" , "mu_Zeesb" , RooArgSet( *rv_mu_Zeesb ) ) ;
RooFormulaVar* rv_n_sbmm = new RooFormulaVar( "n_sbmm" , "mu_Zmmsb" , RooArgSet( *rv_mu_Zmmsb ) ) ;
RooFormulaVar* rv_n_sigee = new RooFormulaVar( "n_sigee" , "mu_Zeesig" , RooArgSet( *rv_mu_Zeesig ) ) ;
RooFormulaVar* rv_n_sigmm = new RooFormulaVar( "n_sigmm" , "mu_Zmmsig" , RooArgSet( *rv_mu_Zmmsig ) ) ;
RooGaussian* pdf_acc_mm = new RooGaussian( "pdf_acc_mm", "Gaussian pdf for Z to mumu acceptance",
*rv_acc_mm, RooConst( acc_mm_mean ), RooConst( acc_mm_err ) ) ;
RooGaussian* pdf_acc_ee = new RooGaussian( "pdf_acc_ee", "Gaussian pdf for Z to ee acceptance",
*rv_acc_ee, RooConst( acc_ee_mean ), RooConst( acc_ee_err ) ) ;
RooGaussian* pdf_eff_mm = new RooGaussian( "pdf_eff_mm", "Gaussian pdf for Z to mumu efficiency",
*rv_eff_mm, RooConst( eff_mm_mean ), RooConst( eff_mm_err ) ) ;
RooGaussian* pdf_eff_ee = new RooGaussian( "pdf_eff_ee", "Gaussian pdf for Z to ee efficiency",
*rv_eff_ee, RooConst( eff_ee_mean ), RooConst( eff_ee_err ) ) ;
RooPoisson* pdf_Nsbee = new RooPoisson( "pdf_Nsbee" , "Nsb , Z to ee Poisson PDF", *rv_Nsbee , *rv_n_sbee ) ;
RooPoisson* pdf_Nsbmm = new RooPoisson( "pdf_Nsbmm" , "Nsb , Z to mm Poisson PDF", *rv_Nsbmm , *rv_n_sbmm ) ;
RooPoisson* pdf_Nsigee = new RooPoisson( "pdf_Nsigee" , "Nsig, Z to ee Poisson PDF", *rv_Nsigee , *rv_n_sigee ) ;
RooPoisson* pdf_Nsigmm = new RooPoisson( "pdf_Nsigmm" , "Nsig, Z to mm Poisson PDF", *rv_Nsigmm , *rv_n_sigmm ) ;
RooArgSet pdflist ;
pdflist.add( *pdf_acc_mm ) ;
pdflist.add( *pdf_acc_ee ) ;
pdflist.add( *pdf_eff_mm ) ;
pdflist.add( *pdf_eff_ee ) ;
pdflist.add( *pdf_Nsbee ) ;
pdflist.add( *pdf_Nsbmm ) ;
pdflist.add( *pdf_Nsigee ) ;
pdflist.add( *pdf_Nsigmm ) ;
RooProdPdf* znnLikelihood = new RooProdPdf( "znnLikelihood", "Z to nunu likelihood", pdflist ) ;
RooArgSet observedParametersList ;
observedParametersList.add( *rv_Nsbee ) ;
observedParametersList.add( *rv_Nsbmm ) ;
observedParametersList.add( *rv_Nsigee ) ;
observedParametersList.add( *rv_Nsigmm ) ;
RooDataSet* dsObserved = new RooDataSet( "ztonn_rds", "Z to nunu dataset", observedParametersList ) ;
dsObserved->add( observedParametersList ) ;
//// RooDataSet* dsObserved = znnLikelihood->generate( observedParametersList, 1) ;
RooWorkspace* znnWorkspace = new RooWorkspace("ztonn_ws") ;
znnWorkspace->import( *znnLikelihood ) ;
znnWorkspace->import( *dsObserved ) ;
znnWorkspace->Print() ;
dsObserved->printMultiline(cout, 1, kTRUE, "") ;
RooFitResult* fitResult = znnLikelihood->fitTo( *dsObserved, Verbose(true), Save(true) ) ;
printf("\n\n----- Constant parameters:\n") ;
RooArgList constPars = fitResult->constPars() ;
for ( int pi=0; pi<constPars.getSize(); pi++ ) {
constPars[pi].Print() ;
} // pi.
printf("\n\n----- Floating parameters:\n") ;
RooArgList floatPars = fitResult->floatParsFinal() ;
for ( int pi=0; pi<floatPars.getSize(); pi++ ) {
floatPars[pi].Print() ;
} // pi.
printf("\n\n") ;
ProfileLikelihoodCalculator plc_znn_sb( *dsObserved, *znnLikelihood, RooArgSet( *rv_mu_Znnsb ) ) ;
ProfileLikelihoodCalculator plc_znn_sig( *dsObserved, *znnLikelihood, RooArgSet( *rv_mu_Znnsig ) ) ;
plc_znn_sb.SetTestSize(0.32) ;
plc_znn_sig.SetTestSize(0.32) ;
ConfInterval* sb_znn_interval = plc_znn_sb.GetInterval() ;
float sbZnnLow = ((LikelihoodInterval*) sb_znn_interval)->LowerLimit(*rv_mu_Znnsb) ;
float sbZnnHigh = ((LikelihoodInterval*) sb_znn_interval)->UpperLimit(*rv_mu_Znnsb) ;
printf("\n\n znn SB interval %6.1f to %6.1f\n", sbZnnLow, sbZnnHigh ) ;
ConfInterval* sig_znn_interval = plc_znn_sig.GetInterval() ;
float sigZnnLow = ((LikelihoodInterval*) sig_znn_interval)->LowerLimit(*rv_mu_Znnsig) ;
float sigZnnHigh = ((LikelihoodInterval*) sig_znn_interval)->UpperLimit(*rv_mu_Znnsig) ;
printf("\n\n znn SIG interval %6.1f to %6.1f\n", sigZnnLow, sigZnnHigh ) ;
TCanvas* c_prof_sb = new TCanvas("c_prof_sb","SB Z to nunu profile") ;
LikelihoodIntervalPlot plot_znn_sb((LikelihoodInterval*)sb_znn_interval) ;
plot_znn_sb.Draw() ;
c_prof_sb->SaveAs("znn_sb_profile.png") ;
TCanvas* c_prof_sig = new TCanvas("c_prof_sig","sig Z to nunu profile") ;
LikelihoodIntervalPlot plot_znn_sig((LikelihoodInterval*)sig_znn_interval) ;
plot_znn_sig.Draw() ;
c_prof_sig->SaveAs("znn_sig_profile.png") ;
}