#include <TLegend.h>
#include <TLine.h>
#include <TMath.h>
+#include <TLegend.h>
+#include <TText.h>
#include <AliLog.h>
#include <AliESD.h>
return kFALSE;
}
- Bool_t eventTriggered = AliPWG0Helper::IsEventTriggered(fESD, AliPWG0Helper::kMB1);
+ static AliTriggerAnalysis* triggerAnalysis = new AliTriggerAnalysis;
+ Bool_t eventTriggered = triggerAnalysis->IsTriggerBitFired(fESD->GetTriggerMask(), AliTriggerAnalysis::kMB1);
if (!eventTriggered)
{
TClonesArray* digits = 0;
treeD->SetBranchAddress("ITSDigitsSPD", &digits);
- if (digits);
+ if (digits)
digits->Clear();
// each value for both layers
fChipsFired = dynamic_cast<TH2F*> (file->Get("fChipsFired"));
fClusterZL1 = dynamic_cast<TH1F*> (file->Get("fClusterZL1"));
fClusterZL2 = dynamic_cast<TH1F*> (file->Get("fClusterZL2"));
+
+ if (!fPrimaryL1 || !fPrimaryL2 || !fChipsFired || !fClusterZL1 || !fClusterZL2)
+ return;
#define MULT 1001, -0.5, 1000.5
#define BINNING_LAYER1 401, -0.5, 400.5
}
}
-TH1* AliHighMultiplicitySelector::GetTriggerEfficiency(TH2* multVsLayer, Int_t cut)
+TH1* AliHighMultiplicitySelector::GetTriggerEfficiency(TH2* multVsLayer, Int_t cut, Int_t upperCut)
{
//
// returns the trigger efficiency as function of multiplicity with a given cut
//allEvents->Sumw2();
//cut and multiply with x-section
- TH1* proj = multVsLayer->ProjectionX(Form("%s_x", multVsLayer->GetName()), cut, 1001);
+ TH1* proj = multVsLayer->ProjectionX(Form("%s_x", multVsLayer->GetName()), cut, upperCut);
//proj->Sumw2();
//new TCanvas; allEvents->DrawCopy(); gPad->SetLogy();
xSections[0] = dynamic_cast<TH1*> (gFile->Get("xSection2Ex"));
xSections[1] = dynamic_cast<TH1*> (gFile->Get("xSection15Ex"));
- // 10^28 lum --> 1.2 kHz
- // 10^31 lum --> 1200 kHz
- //Float_t rate = 1200e3;
- Float_t rate = 250e3;
+ // 10^28 lum --> 1.4 kHz
+ // 10^31 lum --> 1400 kHz
+ //Float_t rate = 1400e3;
+ Float_t rate = 1.4e3;
// time in s
- Float_t lengthRun = 1e6;
+ Float_t lengthRun = 1e5;
Int_t colors[] = { 2, 3, 4, 6, 7, 8 };
Int_t markers[] = { 7, 2, 4, 5, 6, 27 };
//Float_t ratePerTrigger[] = { 60, 13.3, 13.3, 13.3 };
Int_t nCuts = 3;
- Int_t cuts[] = { 0, 126, 162 };
- Float_t ratePerTrigger[] = { 60, 20.0, 20.0 };
+ Int_t cuts[] = { 0, 114, 148 };
+
+ //Int_t nCuts = 3;
+ //Int_t cuts[] = { 0, 126, 162 };
+ //Float_t ratePerTrigger[] = { 60, 20.0, 20.0 };
// desired trigger rate in Hz
- //Float_t ratePerTrigger[] = { 100, 1, 1, 1, 1, 1 };
+ Float_t ratePerTrigger[] = { 100, 1, 1, 1, 1, 1 };
xSection->SetStats(kFALSE);
xSection->SetTitle(""); //(i == 0) ? "SPD Layer 1" : "SPD Layer 2");
nTrigger = TMath::Nint(((Float_t) nTrigger) / 1000) * 1000;
Printf("Normal rate is %f, downscale: %f, Simulating %lld triggers", normalRate, downScale, nTrigger);
+ if (nTrigger == 0)
+ continue;
+
proj2->FillRandom(proj, nTrigger);
Int_t removed = 0;
void AliHighMultiplicitySelector::Contamination()
{
//
- // produces a spectrum created with N triggers
- // number of triggers and thresholds for the moment fixed
//
/*
//Double_t rate = rates[3];
// coll. in 100 ns window
- //Double_t windowSize = 100e-9;
- Double_t windowSize = 25e-9;
+ Double_t windowSize = 100e-9;
+ //Double_t windowSize = 25e-9;
Double_t collPerWindow = windowSize * rate;
Printf("coll/window = %f", collPerWindow);
Double_t windowsPerSecond = 1.0 / windowSize;
TH1* triggerEffHist = (TH1*) GetTriggerEfficiency(fMvsL, cut)->Clone("triggerEff");
- Float_t* triggerEff = new Float_t[max];
+ Float_t* triggerEff = new Float_t[max*2];
for (Int_t mult = 0; mult < max; mult++)
triggerEff[mult] = triggerEffHist->GetBinContent(mult+1);
Int_t cut = cuts[currentCut];
TH1* triggerEffHist = (TH1*) GetTriggerEfficiency(fMvsL, cut)->Clone("triggerEff");
- Float_t* triggerEff = new Float_t[max];
+ Float_t* triggerEff = new Float_t[max*2];
for (Int_t mult = 0; mult < max; mult++)
triggerEff[mult] = triggerEffHist->GetBinContent(mult+1);
Printf("Raw value for 2 collisions is %e", triggerRate2);
- for (Double_t doubleRate = 0; doubleRate <= 0.2; doubleRate += 0.005)
+ for (Double_t doubleRate = 0; doubleRate <= 0.3; doubleRate += 0.005)
{
Float_t totalContamination = (triggerRate2 * doubleRate) / (triggerRate + triggerRate2 * doubleRate);
}
}
+void AliHighMultiplicitySelector::Contamination3()
+{
+ //
+ // draws the contamination as function of treshold depending on a number a set of input MC and rate parameters
+ //
+
+ /*
+
+ gSystem->Load("libANALYSIS");
+ gSystem->Load("libPWG0base");
+ .L AliHighMultiplicitySelector.cxx+g
+ x = new AliHighMultiplicitySelector();
+ x->ReadHistograms("highmult_hijing100k.root");
+ x->Contamination3();
+
+ */
+
+ // output file
+ TFile* output = TFile::Open("contamination3.root", "RECREATE");
+
+ // get x-sections
+ TFile* file = TFile::Open("crosssectionEx_10TeV.root");
+ if (!file)
+ return;
+
+ TCanvas* c = new TCanvas;
+ c->SetGridx();
+ c->SetGridy();
+
+ TLegend* legend = new TLegend(0.7, 0.2, 1, 0.5);
+ legend->SetNColumns(2);
+
+ TH2* dummy = new TH2F("dummy", ";Layer 1 Threshold;Contamination", 100, 95, 255, 100, 0, 1);
+ dummy->SetStats(kFALSE);
+ dummy->Draw();
+
+ for (Int_t mc = 0; mc < 6; mc++)
+ {
+ TH1* xSections[2];
+ TString str;
+ str.Form("xSection2Ex_%d_%d", mc/3, mc%3);
+ Printf("%s", str.Data());
+ file->cd();
+ xSections[0] = dynamic_cast<TH1*> (gFile->Get(str));
+ //xSections[1] = dynamic_cast<TH1*> (gFile->Get("xSection15Ex"));
+
+ // prob for a collision in a bunch crossing
+ Int_t nRates = 1;
+ //Float_t rates[] = {0.02, 0.05, 0.1, 0.15, 0.2};
+ Float_t rates[] = {0.0636};
+
+ // bunch crossing rate in Hz
+ Float_t bunchCrossingRate = 24. * 11245.5;
+
+ Int_t colors[] = { 2, 3, 4, 6, 7, 8 };
+ Int_t markers[] = { 7, 2, 4, 5, 6, 27 };
+
+ // put to 2 for second layer
+ for (Int_t i=0; i<1; ++i)
+ {
+ if (!xSections[i])
+ continue;
+
+ // relative x-section, once we have a collision
+ xSections[i]->Scale(1.0 / xSections[i]->Integral());
+
+ Int_t max = xSections[i]->GetNbinsX();
+ max = 500;
+
+ Float_t* xSection = new Float_t[max];
+ for (Int_t mult = 0; mult < max; mult++)
+ xSection[mult] = xSections[i]->GetBinContent(mult+1);
+
+ TH2* fMvsL = (i == 0) ? fMvsL1: fMvsL2;
+
+ for (Int_t currentRate = 0; currentRate<nRates; ++currentRate)
+ {
+ TGraph* graph = new TGraph;
+ graph->SetMarkerColor(colors[currentRate]);
+ graph->SetMarkerStyle(markers[currentRate]);
+
+ TGraph* graph2 = new TGraph;
+
+ Float_t rate = rates[currentRate];
+
+ Double_t singleRate = TMath::Poisson(1, rate);
+ Double_t doubleRate = TMath::Poisson(2, rate);
+ Double_t tripleRate = TMath::Poisson(3, rate);
+
+ Printf("single = %f, double = %f, triple = %f", singleRate, doubleRate, tripleRate);
+
+ for (Int_t cut = 100; cut <= 251; cut += 10)
+ {
+ Printf("Cut at %d", cut);
+
+ TH1* triggerEffHist = (TH1*) GetTriggerEfficiency(fMvsL, cut)->Clone("triggerEff");
+ Float_t* triggerEff = new Float_t[max*2];
+ for (Int_t mult = 0; mult < max; mult++)
+ triggerEff[mult] = triggerEffHist->GetBinContent(mult+1);
+
+ Double_t triggerRate = 0;
+ for (Int_t mult = 0; mult < max; mult++)
+ triggerRate += xSection[mult] * triggerEff[mult];
+
+ //Printf(" Raw value for 1 collision is %e; Rate: %.1f Hz", triggerRate, triggerRate * singleRate * bunchCrossingRate);
+
+ Double_t triggerRate2 = 0;
+ for (Int_t mult = 0; mult < max; mult++)
+ for (Int_t mult2 = mult; mult2 < max; mult2++)
+ if (mult+mult2 < max)
+ triggerRate2 += ((mult2 > mult) ? 2. : 1.) * xSection[mult] * xSection[mult2] * triggerEff[mult+mult2];
+
+ //Printf(" Raw value for 2 collisions is %e; Rate: %.1f Hz", triggerRate2, triggerRate2 * doubleRate * bunchCrossingRate);
+
+ Double_t triggerRate3 = 0;
+ for (Int_t mult = 0; mult < max; mult++)
+ for (Int_t mult2 = 0; mult2 < max; mult2++)
+ for (Int_t mult3 = 0; mult3 < max; mult3++)
+ if (mult+mult2+mult3 < max)
+ triggerRate3 += xSection[mult] * xSection[mult2] * xSection[mult3] * triggerEff[mult+mult2+mult3];
+
+ //Printf(" Raw value for 3 collisions is %e; Rate: %.1f Hz", triggerRate3, triggerRate3 * tripleRate * bunchCrossingRate);
+
+ Printf(" Rates: %.1f Hz; %.1f Hz; %.1f Hz", triggerRate * singleRate * bunchCrossingRate, triggerRate2 * doubleRate * bunchCrossingRate, triggerRate3 * tripleRate * bunchCrossingRate);
+
+ Float_t totalTrigger = (triggerRate * singleRate + triggerRate2 * doubleRate + triggerRate3 * tripleRate);
+
+ Printf(" Total trigger rate: %.1f Hz", totalTrigger * bunchCrossingRate);
+
+ //if (totalTrigger * bunchCrossingRate > 200)
+ // continue;
+
+ Float_t totalContamination = (triggerRate2 * doubleRate + triggerRate3 * tripleRate) / totalTrigger;
+ //if (totalContamination > 0.99)
+ // break;
+
+ Printf(" Total contamination is %.1f%%", totalContamination * 100);
+
+ graph->SetPoint(graph->GetN(), cut, totalContamination);
+ graph2->SetPoint(graph->GetN(), cut, totalTrigger * bunchCrossingRate);
+ }
+
+ graph->SetMarkerStyle(mc+20);
+ graph->SetMarkerColor(currentRate+1);
+ graph->Draw("P SAME");
+ graph->GetXaxis()->SetTitle("Layer 1 threshold");
+ graph->GetYaxis()->SetTitle("Contamination");
+ graph->GetYaxis()->SetRangeUser(0, 1);
+
+ if (currentRate == 0)
+ {
+ const char* legendLabel[] = { "Pythia Slope 1", "Pythia Slope 2", "Pythia Slope 3", "Phojet Slope 1", "Phojet Slope 2", "Phojet Slope 3" };
+ legend->AddEntry(graph, legendLabel[mc], "P");
+ }
+
+ output->cd();
+ graph->Write(Form("%s_%d_cont", str.Data(), currentRate));
+ graph2->Write(Form("%s_%d_rate", str.Data(), currentRate));
+ }
+ }
+ }
+
+ output->Close();
+
+ legend->Draw();
+}
+
+void AliHighMultiplicitySelector::Contamination_Reach()
+{
+ // plot the multiplicity reach based on the output from Contamination3()
+ // for each rate case and each MC, a certain number of events is required starting counting from the highest multiplicity
+ // note that the reach of different MC cannot be compared with each other
+
+ /*
+
+ gSystem->Load("libANALYSIS");
+ gSystem->Load("libPWG0base");
+ .L AliHighMultiplicitySelector.cxx+g
+ x = new AliHighMultiplicitySelector();
+ x->ReadHistograms("highmult_hijing100k.root");
+ x->Contamination_Reach();
+
+ */
+
+ TCanvas* c = new TCanvas("c", "c", 800, 600);
+ c->Divide(2, 3);
+
+ // prob for a collision in a bunch crossing
+ Int_t nRates = 1;
+ //Float_t rates[] = {0.02, 0.05, 0.1, 0.15, 0.2};
+ Float_t rates[] = {0.0636};
+
+ // bunch crossing rate in Hz
+ Float_t bunchCrossingRate = 24. * 11245.5;
+
+ TH2* dummy = new TH2F("dummy", ";Coll/bunch crossing;multiplicity reach", 100, 0, 0.3, 100, 50, 350);
+ //TH2* dummy = new TH2F("dummy", ";Coll/bunch crossing;fractional cross-section", 100, 0, 0.3, 1000, 1e-6, 0.1);
+ dummy->SetStats(kFALSE);
+
+ const char* legendLabel[] = { "Pythia Slope 1", "Pythia Slope 2", "Pythia Slope 3", "Phojet Slope 1", "Phojet Slope 2", "Phojet Slope 3" };
+
+ TFile* mcFile = TFile::Open("crosssectionEx_10TeV.root");
+ TFile* contFile = TFile::Open("contamination3.root");
+
+ // for comparison: how many MB events can one take at the same time
+ Int_t mbEvents = 2000000 * 500;
+
+ for (Int_t mc=0; mc<6; mc++)
+ {
+ mcFile->cd();
+ TH1* mcHist = (TH1*) gFile->Get(Form("xSection2Ex_%d_%d", mc/3, mc%3));
+ mcHist->Scale(1.0 / mcHist->Integral());
+
+ c->cd(mc+1);//->SetLogy();
+ c->SetGridx();
+ c->SetGridy();
+ dummy->Draw();
+
+ Int_t color = 0;
+ for (Int_t requiredEvents = 300; requiredEvents <= 3000000; requiredEvents *= 10)
+ {
+ TGraph* reach = new TGraph;
+
+ color++;
+ if (color == 5)
+ color++;
+
+ Float_t requiredRate = (Float_t) requiredEvents / 1e6;
+ Printf("Required rate is %f", requiredRate);
+
+ // find reach without trigger
+ Int_t mbReach = 1000;
+ while (mcHist->Integral(mcHist->FindBin(mbReach), mcHist->GetNbinsX()) < (Float_t) requiredEvents / mbEvents && mbReach > 1)
+ mbReach--;
+ Printf("MB reach is %d with %f events", mbReach, mcHist->Integral(mcHist->FindBin(mbReach), mcHist->GetNbinsX()) * mbEvents);
+
+ for (Int_t rate=0; rate<nRates; rate++)
+ {
+ contFile->cd();
+ TGraph* cont = (TGraph*) gFile->Get(Form("xSection2Ex_%d_%d_%d_cont", mc/3, mc%3, rate));
+ TGraph* rateh = (TGraph*) gFile->Get(Form("xSection2Ex_%d_%d_%d_rate", mc/3, mc%3, rate));
+
+ Double_t singleRate = TMath::Poisson(1, rates[rate]);
+ Double_t totalCollRate = singleRate * bunchCrossingRate;
+ Printf("collisions/bc: %f; coll. rate: %f", singleRate, totalCollRate);
+
+ // find 200 Hz limit
+ Int_t low = 100;
+ while (rateh->Eval(low) > 200)
+ low++;
+
+ // find contamination limit
+ Int_t high = 100;
+ while (cont->Eval(high) < 0.9 && high < 250)
+ high++;
+
+ Printf("MC %d Rate %d: Acceptable threshold region is %d to %d", mc, rate, low, high);
+ // find reachable multiplicity; include contamination in rate calculation
+ // TH1* triggerEffHist = (TH1*) GetTriggerEfficiency(fMvsL, cut)->Clone("triggerEff");
+
+ // trigger efficiency as function of multiplicity in range mult <= ... <= high
+ //new TCanvas; fMvsL1->Draw("COLZ");
+ TH1* triggerEffHist = (TH1*) GetTriggerEfficiency(fMvsL1, low, high);
+
+ //new TCanvas; triggerEffHist->DrawCopy();
+ triggerEffHist->Multiply(mcHist);
+
+ Float_t fractionXSection = triggerEffHist->Integral();
+ Printf("The fraction of the cross-section is %f", fractionXSection);
+
+ //new TCanvas; triggerEffHist->DrawCopy();
+ triggerEffHist->Scale(totalCollRate);
+ //new TCanvas; triggerEffHist->DrawCopy(); gPad->SetLogy();
+
+ Float_t achievedRate = 0;
+ Int_t mult = 1000;
+ while (1)
+ {
+ achievedRate = triggerEffHist->Integral(triggerEffHist->FindBin(mult), triggerEffHist->GetNbinsX());
+
+ if (achievedRate >= requiredRate)
+ break;
+
+ if (mult == 1)
+ break;
+
+ mult--;
+ }
+
+ Printf("Achieved rate %f above multiplicity %d", achievedRate, mult);
+
+ if (achievedRate < requiredRate)
+ {
+ Printf("Achieved rate too low");
+ continue;
+ }
+
+ reach->SetPoint(reach->GetN(), rates[rate], mult);
+ //reach->SetPoint(reach->GetN(), rates[rate], fractionXSection);
+
+
+ //return;
+ }
+
+ reach->SetMarkerColor(color);
+ reach->Draw("SAME*");
+
+ TLine* line = new TLine(0, mbReach, 0.3, mbReach);
+ line->SetLineColor(color);
+ //line->Draw();
+ }
+
+ TText* text = new TText;
+ text->DrawText(0.2, 325, legendLabel[mc]);
+ //return;
+ }
+}
+
void AliHighMultiplicitySelector::DrawHistograms()
{
// draws the histograms
gSystem->Load("libANALYSIS");
gSystem->Load("libPWG0base");
- .L AliHighMultiplicitySelector.cxx+
+ .L AliHighMultiplicitySelector.cxx++
x = new AliHighMultiplicitySelector();
x->ReadHistograms("highmult_hijing100k.root");
x->DrawHistograms();
return 0;
TH1* xSection;
- xSection = dynamic_cast<TH1*> (gFile->Get("xSection2Ex"));
+ xSection = static_cast<TH1*> (gFile->Get("xSection2Ex"));
TGraph* result = new TGraph;
if (triggerLimit > limit)
Printf(" WARNING: interesting events also counted inside the trigger limit");
- Printf("");
+ Printf(" ");
}
canvas->cd(currentLimit+1)->SetLogx();
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff