HES-HKS & KaoS meeting Toshi Gogami 24July2013

Contents APPC12 Test CYRIC Analysis

Makuhari 7/14 – 7/19 Poster presentation Proceedings

Test CYRIC (7/19-20) wiki 1700 mm γ n

Analysis Elementary – K + decay factor – Absorption factor – Matrix – Trigger efficiency – Cut efficiency – Lambda reduction depending on time epics – Energy loss

f decay HKS Geant4

Λ events ( charge 3000uA/10 ) bgh bgh bgh bgh bgh bgh bgh bgh bgh bgh

Summary APPC12 – Poster presentation – Submitted the proceedings Test CYRIC – n-gamma TOF difference was observed in the D-type neutron detector E analysis – Matrix tuning is in progress p, etc. – Elementary Will be done

Backup

TOF cut  ADC partial vs. total

decay.cc /* decay.cc Toshi Gogami, 22July2013 */ void decay(char* num){ // ========== General Conditions ============== gROOT->SetStyle("Plain"); gStyle->SetOptStat(0); // ========== Open ROOT files ================== char file1[300]; char file2[300]; char Rfile1[300]; char Rfile2[300]; sprintf(file1,"hks_decayON_%s_onlymom",num); sprintf(Rfile1,"%s.root",file1); sprintf(file2,"hks_decayOFF_%s_onlymom",num); sprintf(Rfile2,"%s.root",file2); // File // TFile* f1 = new TFile(Rfile1); TTree* t1 = (TTree*)f1->Get("tree"); // File // TFile* f2 = new TFile(Rfile2); TTree* t2 = (TTree*)f2->Get("tree"); // ============= Create Histograms ============ double min1 = 0.9, max1 = 1.40; int bin1 = 100; // ---- Decay ON // TH1F* h1 = new TH1F("h1","",bin1,min1,max1); t1->Project("h1","KMom","Trig"); h1->GetXaxis()->SetTitle(" [ GeV ] "); h1->GetXaxis()->SetTitle(" [ Counts ] "); // ---- Decay OFF // TH1F* h2 = new TH1F("h2","",bin1,min1,max1); t2->Project("h2","KMom","Trig"); h2->GetXaxis()->SetTitle(" [ GeV ] "); h2->GetYaxis()->SetTitle(" [ Counts ] "); // Divided // double a1,a2; double er; TH1F* h_div = (TH1F*)h2->Clone("h_div"); h_div->GetYaxis()->SetTitle(""); h_div->GetXaxis()->SetTitle(" [ GeV/c ] "); for(int i=0 ; i GetBinContent(i+1); // Decay ON a2 = h2->GetBinContent(i+1); // Decay OFF if(a2!=0){ er = a1/a2 * sqrt(1/a1 + 1/a2); h_div->SetBinContent(i+1,a1/a2); } else{ er = 0.0; h_div->SetBinContent(i+1,0.0); } h_div->SetBinError(i+1,er); } // ============= Draw Histograms ================= TCanvas* c1 = new TCanvas("c1","c1"); h2->Draw(); h1->Draw("same"); //h2->Draw("same"); TCanvas* c2 = new TCanvas("c2","c2"); gPad->SetGridx();gPad->SetGridy(); h_div->SetMaximum(0.5); h_div->Draw(); } void decay(){ // ========== General Conditions ============== gROOT->SetStyle("Plain"); gStyle->SetOptStat(0); // ========== Open ROOT files ================== char file1[300]; char file2[300]; char Rfile1[300]; char Rfile2[300]; //sprintf(file1,"hks_decayON_%s_onlymom",num); //sprintf(Rfile1,"%s.root",file1); sprintf(Rfile1,"hks_decayON.root"); //sprintf(file2,"hks_decayOFF_%s_onlymom",num); //sprintf(Rfile2,"%s.root",file2); sprintf(Rfile2,"hks_decayOFF.root"); // File // TFile* f1 = new TFile(Rfile1); TTree* t1 = (TTree*)f1->Get("tree"); // File // TFile* f2 = new TFile(Rfile2); TTree* t2 = (TTree*)f2->Get("tree"); // ========== Cut conditions ================= TCut cut = "1.0 Project("h1","KMom","Trig"&&cut); h1->GetXaxis()->SetTitle(" [ GeV ] "); h1->GetXaxis()->SetTitle(" [ Counts ] "); // ---- Decay OFF // TH1F* h2 = new TH1F("h2","",bin1,min1,max1); t2->Project("h2","KMom","Trig"&&cut); h2->GetXaxis()->SetTitle(" [ GeV ] "); h2->GetYaxis()->SetTitle(" [ Counts ] "); // Divided // double a1,a2; double er; TH1F* h_div = (TH1F*)h2->Clone("h_div"); h_div->GetYaxis()->SetTitle(""); h_div->GetXaxis()->SetTitle(" [ GeV/c ] "); for(int i=0 ; i GetBinContent(i+1); // Decay ON a2 = h2->GetBinContent(i+1); // Decay OFF if(a2!=0){ er = a1/a2 * sqrt(1/a1 + 1/a2); h_div->SetBinContent(i+1,a1/a2); } else{ er = 0.0; h_div->SetBinContent(i+1,0.0); } h_div->SetBinError(i+1,er); } // ============= Draw Histograms ================= TCanvas* c1 = new TCanvas("c1","c1"); h2->Draw(); h1->Draw("same"); //h2->Draw("same"); TCanvas* c2 = new TCanvas("c2","c2"); gPad->SetGridx();gPad->SetGridy(); h_div->SetMaximum(0.6); h_div->GetXaxis()->SetRangeUser(0.95,1.35); h_div->SetMarkerSize(2.0); h_div->SetLineWidth(2.0); h_div->Draw(); // =========== func ====================== TF1*func1 = new TF1("func1", "[0]+[1]*x+[2]*pow(x,2.0)+[3]*pow(x,3.0)+[4]*pow(x,4.0)+[5]*pow(x,5.0)+[6]*pow(x,6.0)+[7]*pow(x,7.0)+[8]*pow(x,8.0)+[9]*pow(x,9.0)", 1.0,1.335); func1->SetParameters(9.4,-1.0e1,-5.7,2.1,5.1,3.2,-3.6e-1,-2.7,-1.8,1.5); h_div->Fit("func1","N","",1.0,1.335); func1->SetLineWidth(1.0); func1->SetLineColor(9); func1->Draw("same"); int npar = func1->GetNpar(); ofstream* ofs = new ofstream("Kdecay.dat"); *ofs GetExpFormula() GetParameter(i) GetParError(i) close(); //cout GetExpFormula() Print("Kdecay_23July2013.png","png"); //c1->Print("Kdecay_23July2013.eps","eps"); }

Kdecay.dat (((((((([0]+([1]*x))+([2]*(x^2.0)))+([3]*(x^3.0)))+([4]*(x^4.0)))+([5]*(x^5.0)))+([ 6]*(x^6.0)))+([7]*(x^7.0)))+([8]*(x^8.0)))+([9]*(x^9.0)) Created by /home/gogami/8d/gogami/root2/Kdecay/decay.cc Toshi Gogami, 23July2013

HES-HKS & KaoS meeting Toshi Gogami 15Mar2013

Doctor thesis for JLab E Electroproduction of Kaons on Hydrogen and Deuterium (Douglas Michael Koltenuk, 1999) 8

Charge’ Accidental + True Coincidence time [ns] (CHARGE) end / ( EVENT ID ) max * ( EVENT ID ) Charge’ [ uC ]  Scaled EVENT ID

Charge’ dependence The number of Lambda The number of QF Charge’ [ uC ] Coincidence time ( w/o Λ,Σ 0 from H ) (True+Acc.) – (Acc 6.)/6.0 Time or charge dependence should be seen to see a tendency of reduction of number Λ ( Σ 0 ).  EPICS

Cross section Lambda Polyethylene – Burning out effect (Time dependence) Time dependence (Charge ) by using EPICS information Water – Trigger Efficiency ( Cherenkov ) No CP0 data cannot be used for estimation for this target Rate ( multiplicity ) vs. efficiency  Extrapolate

12 Λ B peak differences of s,p-shell Energy loss Beam angle Carbon Polyethylene