723 lines
26 KiB
C
723 lines
26 KiB
C
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#include "TROOT.h"
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#include "TBenchmark.h"
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#include "TLorentzVector.h"
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#include "TMath.h"
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#include "TFile.h"
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#include "TF1.h"
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#include "TTree.h"
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#include "TRandom.h"
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#include "TGraph.h"
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#include "TMacro.h"
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#include <stdlib.h>
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#include <vector>
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#include <fstream>
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#include <TObjArray.h>
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#include "HELIOS_LIB.h"
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double exDistFunc(Double_t *x, Double_t * par){
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return par[(int) x[0]];
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}
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void Transfer(
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string basicConfig = "reactionConfig.txt",
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string heliosDetGeoFile = "detectorGeo.txt",
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string excitationFile = "Ex.txt", ///when no file, only ground state
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TString ptolemyRoot = "DWBA.root", /// when no file, use isotropic distribution of thetaCM
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TString saveFileName = "transfer.root",
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TString filename = "reaction.dat"){ /// when no file, no output.
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//############################################# Set Reaction
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TransferReaction reaction;
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reaction.SetReactionFromFile(basicConfig);
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printf("*****************************************************************\n");
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printf("*\e[1m\e[33m %27s \e[0m*\n", reaction.GetReactionName().Data());
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printf("*****************************************************************\n");
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printf("----- loading reaction setting from %s. \n", basicConfig.c_str());
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printf("\e[32m#################################### Beam \e[0m\n");
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const ReactionConfig reactionConfig = reaction.GetRectionConfig();
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PrintReactionConfig(reactionConfig);
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vector<float> ExAList = reactionConfig.beamEx;
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int nExA = (int) ExAList.size();
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//############################################# Set HELIOS
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printf("\e[32m#################################### HELIOS configuration\e[0m\n");
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HELIOS helios;
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helios.SetDetectorGeometry(heliosDetGeoFile);
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const DetGeo detGeo = helios.GetDetectorGeometry();
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printf("==================================== E-Z plot slope\n");
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double betaRect = reaction.GetReactionBeta() ;
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double gamma = reaction.GetReactionGamma();
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double mb = reaction.GetMass_b();
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double pCM = reaction.GetMomentumbCM();
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double q = TMath::Sqrt(mb*mb + pCM*pCM); ///energy of light recoil in center of mass
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double slope = 299.792458 * reaction.GetCharge_b() * abs(helios.GetBField()) / TMath::TwoPi() * betaRect / 1000.; /// MeV/mm
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printf(" e-z slope : %f MeV/mm\n", slope);
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double intercept = q/gamma - mb; // MeV
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printf(" e-z intercept (ground state) : %f MeV\n", intercept);
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//############################################# save reaction.dat
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if( filename != "" ) {
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FILE * keyParaOut;
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keyParaOut = fopen (filename.Data(), "w+");
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printf("=========== save key reaction constants to %s \n", filename.Data());
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fprintf(keyParaOut, "%-15.4f //%s\n", reaction.GetMass_b(), "mass_b");
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fprintf(keyParaOut, "%-15d //%s\n", reaction.GetCharge_b(), "charge_b");
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fprintf(keyParaOut, "%-15.8f //%s\n", reaction.GetReactionBeta(), "betaCM");
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fprintf(keyParaOut, "%-15.4f //%s\n", reaction.GetCMTotalEnergy(), "Ecm");
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fprintf(keyParaOut, "%-15.4f //%s\n", reaction.GetMass_B(), "mass_B");
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fprintf(keyParaOut, "%-15.4f //%s\n", slope/betaRect, "alpha=slope/betaRect");
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fflush(keyParaOut);
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fclose(keyParaOut);
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}
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//############################################# Target scattering, only energy loss
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bool isTargetScattering = reactionConfig.isTargetScattering;
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float density = reactionConfig.targetDensity;
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float targetThickness = reactionConfig.targetThickness;
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if(isTargetScattering) printf("\e[32m#################################### Target Scattering\e[0m\n");
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TargetScattering msA;
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TargetScattering msB;
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TargetScattering msb;
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if(reactionConfig.isTargetScattering) printf("======== Target : (thickness : %6.2f um) x (density : %6.2f g/cm3) = %6.2f ug/cm2\n",
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targetThickness * 1e+4,
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density,
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targetThickness * density * 1e+6);
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if( reactionConfig.isTargetScattering ){
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msA.LoadStoppingPower(reactionConfig.beamStoppingPowerFile);
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msb.LoadStoppingPower(reactionConfig.recoilLightStoppingPowerFile);
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msB.LoadStoppingPower(reactionConfig.recoilHeavyStoppingPowerFile);
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}
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//############################################# Decay of particle-B
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Decay decay;
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if(reactionConfig.isDecay) {
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printf("\e[32m#################################### Decay\e[0m\n");
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decay.SetMotherDaugther(reactionConfig.recoilHeavyA,
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reactionConfig.recoilHeavyZ,
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reactionConfig.heavyDecayA,
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reactionConfig.heavyDecayZ);
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}
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//############################################# loading excitation energy
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printf("\e[32m#################################### excitation energies\e[0m\n");
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vector<double> ExKnown;
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vector<double> ExStrength;
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vector<double> ExWidth;
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vector<double> SF;
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vector<double> y0; /// intercept of e-z plot
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vector<double> kCM; /// momentum of b in CM frame
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printf("----- loading excitation energy levels (%s).", excitationFile.c_str());
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ifstream file;
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file.open(excitationFile.c_str());
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string isotopeName;
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if( file.is_open() ){
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string line;
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while( getline(file, line) ){
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///printf("%s \n", line.c_str());
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if( line.substr(0,2) == "//" ) continue;
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if( line.substr(0,2) == "#=" ) break;
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vector<string> str = SplitStr(line, " ");
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ExKnown.push_back(atof(str[0].c_str()));
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ExStrength.push_back(atof(str[1].c_str()));
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SF.push_back(atof(str[2].c_str()));
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ExWidth.push_back(atof(str[3].c_str()));
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}
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file.close();
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printf("... done.\n");
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int n = (int) ExKnown.size();
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printf("%3s | %7s | %5s | %3s | %10s | %5s \n", "", "Ex[MeV]", "Xsec", "SF", "sigma[MeV]", "y0[MeV]");
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printf("----+---------+------+-----+------------+--------\n");
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for(int i = 0; i < n ; i++){
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reaction.SetExB(ExKnown[i]);
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reaction.CalReactionConstant();
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kCM.push_back(reaction.GetMomentumbCM());
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y0.push_back(TMath::Sqrt(mb*mb + kCM[i]*kCM[i])/gamma - mb);
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if( reactionConfig.isDecay ) {
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TLorentzVector temp(0,0,0,0);
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int decayID = decay.CalDecay(temp, ExKnown[i], 0);
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if( decayID == 1) {
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printf("%3d | %7.2f | %5.2f | %3.1f | %5.3f | %5.2f --> Decay. \n", i, ExKnown[i], ExStrength[i], SF[i], ExWidth[i], y0[i]);
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}else{
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printf("%3d | %7.2f | %5.2f | %3.1f | %5.3f | %5.2f \n", i, ExKnown[i], ExStrength[i], SF[i], ExWidth[i], y0[i]);
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}
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}else{
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printf("%3d | %7.2f | %5.2f | %3.1f | %5.3f | %5.2f \n", i, ExKnown[i], ExStrength[i], SF[i], ExWidth[i], y0[i]);
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}
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}
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printf("----+---------+-------+-----+------------+--------\n");
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}else{
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printf("... fail ------> only ground state.\n");
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ExKnown.push_back(0.0);
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ExStrength.push_back(1.0);
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ExWidth.push_back(0.0);
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reaction.SetExB(ExKnown[0]);
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reaction.CalReactionConstant();
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kCM.push_back(reaction.GetMomentumbCM());
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y0.push_back(TMath::Sqrt(mb*mb + kCM[0]*kCM[0])/gamma - mb);
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}
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//---- create Ex-distribution
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TF1 * exDist = NULL;
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if( ExKnown.size() > 1 ) {
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printf("---- creating Ex-distribution \n");
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int exSize = ExKnown.size();
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exDist = new TF1("exDist", exDistFunc, 0, exSize, exSize);
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for(int i = 0; i < exSize; i++){
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exDist->SetParameter(i, ExStrength[i]*SF[i]);
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}
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}
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//############################################# Load DWBAroot for thetaCM distribution
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printf("\e[32m#################################### Load DWBA input : %s \e[0m\n", ptolemyRoot.Data());
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TF1 * dist = NULL;
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TFile * distFile = new TFile(ptolemyRoot, "read");
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TObjArray * distList = NULL;
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if( distFile->IsOpen() ) {
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distList = (TObjArray *) distFile->FindObjectAny("pList"); // the function List
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int distSize = distList->GetLast() + 1;
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if( distSize != ExKnown.size() ) {
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printf(" The number of distribution from Ptolmey Calculation is not equal to number of Ex input \n");
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printf(" --> the Ptolmey calculation is probably not matched with Ex input.\n");
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printf(" .... not use DWBA input. \n");
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distFile->Close();
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}
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}else{
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printf("------- no DWBA input. \n");
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}
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//############################################# build tree
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printf("\e[32m#################################### building Tree in %s\e[0m\n", saveFileName.Data());
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TFile * saveFile = new TFile(saveFileName, "recreate");
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TTree * tree = new TTree("tree", "tree");
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TMacro config(basicConfig.c_str());
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TMacro detGeoTxt(heliosDetGeoFile.c_str());
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TMacro exList(excitationFile.c_str());
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TMacro reactionData(filename.Data());
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double KEAmean = reactionConfig.beamEnergy;
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TString str;
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str.Form("%s @ %.2f MeV/u", reaction.GetReactionName_Latex().Data(), KEAmean);
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config.SetName(str.Data());
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config.Write("reactionConfig");
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detGeoTxt.Write("detGeo");
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exList.Write("ExList");
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reactionData.Write("reactionData");
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if( distList != NULL ) distList->Write("DWBA", 1);
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TMacro hitMeaning;
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str = "=======================meaning of Hit ID\n"; hitMeaning.AddLine(str.Data());
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str = " 1 = light recoil hit array & heavy recoil hit recoil\n"; hitMeaning.AddLine(str.Data());
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str = " 0 = no detector\n"; hitMeaning.AddLine(str.Data());
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str = " -1 = light recoil go opposite side of array\n"; hitMeaning.AddLine(str.Data());
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str = " -2 = light recoil hit > det width\n"; hitMeaning.AddLine(str.Data());
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str = " -3 = light recoil hit > array \n"; hitMeaning.AddLine(str.Data());
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str = " -4 = light recoil hit blocker \n"; hitMeaning.AddLine(str.Data());
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str = " -10 = light recoil orbit radius too big \n"; hitMeaning.AddLine(str.Data());
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str = " -11 = light recoil orbit radius too small\n"; hitMeaning.AddLine(str.Data());
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str = " -12 = when reocol at the same side of array, light recoil blocked by recoil detector\n"; hitMeaning.AddLine(str.Data());
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str = " -13 = more than 3 loops\n"; hitMeaning.AddLine(str.Data());
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str = " -14 = heavy recoil did not hit recoil \n"; hitMeaning.AddLine(str.Data());
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str = " -15 = cannot find hit on array\n"; hitMeaning.AddLine(str.Data());
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str = " -20 = unknown\n"; hitMeaning.AddLine(str.Data());
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str = "===========================================\n"; hitMeaning.AddLine(str.Data());
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hitMeaning.Write("hitMeaning");
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int hit; /// the output of Helios.CalHit
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tree->Branch("hit", &hit, "hit/I");
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double thetab, phib, Tb;
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double thetaB, phiB, TB;
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tree->Branch("thetab", &thetab, "thetab/D");
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tree->Branch("phib", &phib, "phib/D");
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tree->Branch("Tb", &Tb, "Tb/D");
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tree->Branch("thetaB", &thetaB, "thetaB/D");
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tree->Branch("phiB", &phiB, "phiB/D");
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tree->Branch("TB", &TB, "TB/D");
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double thetaCM;
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tree->Branch("thetaCM", &thetaCM, "thetaCM/D");
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double e, z, detX, t, z0, tB;
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tree->Branch("e", &e, "energy_light/D");
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tree->Branch("x", &detX, "detector_x/D");
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tree->Branch("z", &z, "array_hit_z/D");
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tree->Branch("z0", &z0, "z-cycle/D");
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tree->Branch("t", &t, "cycle_time_light/D");
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tree->Branch("tB", &tB, "recoil_hit_time/D"); /// hit time for recoil on the recoil detector
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int loop, detID, detRowID;
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tree->Branch("detID", &detID, "detID/I");
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tree->Branch("detRowID", &detRowID, "detRowID/I");
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tree->Branch("loop", &loop, "loop/I");
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double rho, rhoB; ///orbit radius
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tree->Branch("rho", &rho, "orbit_radius_light/D");
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tree->Branch("rhoB", &rhoB, "orbit_radius_heavy/D");
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int ExAID;
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double ExA;
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tree->Branch("ExAID", &ExAID, "ExAID/I");
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tree->Branch("ExA", &ExA, "ExA/D");
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int ExID;
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double Ex;
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tree->Branch("ExID", &ExID, "ExID/I");
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tree->Branch("Ex", &Ex, "Ex/D");
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double ExCal, thetaCMCal;
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tree->Branch("ExCal", &ExCal, "ExCal/D");
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tree->Branch("thetaCMCal", &thetaCMCal, "thetaCMCal/D");
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double KEA, theta, phi;
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tree->Branch("beamTheta", &theta, "beamTheta/D");
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tree->Branch("beamPhi", &phi, "beamPhi/D");
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tree->Branch("beamKEA", &KEA, "beamKEA/D");
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double TbLoss; /// energy loss of particle-b from target scattering
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double KEAnew; ///beam energy after target scattering
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double depth; /// reaction depth;
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double Ecm;
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if( reactionConfig.isTargetScattering ){
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tree->Branch("depth", &depth, "depth/D");
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tree->Branch("TbLoss", &TbLoss, "TbLoss/D");
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tree->Branch("KEAnew", &KEAnew, "KEAnew/D");
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tree->Branch("Ecm", &Ecm, "Ecm/D");
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}
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double decayTheta; /// the change of thetaB due to decay
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double xRecoil_d, yRecoil_d, rhoRecoil_d, Td;
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if( reactionConfig.isDecay ) {
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tree->Branch("decayTheta", &decayTheta, "decayTheta/D");
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tree->Branch("xRecoil_d", &xRecoil_d, "xRecoil_d/D");
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tree->Branch("yRecoil_d", &yRecoil_d, "yRecoil_d/D");
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tree->Branch("rhoRecoil_d", &rhoRecoil_d, "rhoRecoil_d/D");
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tree->Branch("Td", &Td, "Td/D");
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}
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double xArray, yArray, rhoArray; ///x, y, rho positon of particle-b on PSD
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tree->Branch("xArray", &xArray, "xArray/D");
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tree->Branch("yArray", &yArray, "yArray/D");
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tree->Branch("rhoArray", &rhoArray, "rhoArray/D");
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double xRecoil, yRecoil, rhoRecoil; /// x, y, rho position of particle-B on recoil-detector
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tree->Branch("xRecoil", &xRecoil, "xRecoil/D");
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tree->Branch("yRecoil", &yRecoil, "yRecoil/D");
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tree->Branch("rhoRecoil", &rhoRecoil, "rhoRecoil/D");
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///in case need ELUM
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double xElum1, yElum1, rhoElum1;
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if( detGeo.elumPos1 != 0 ) {
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tree->Branch("xElum1", &xElum1, "xElum1/D");
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tree->Branch("yElum1", &yElum1, "yElum1/D");
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tree->Branch("rhoElum1", &rhoElum1, "rhoElum1/D");
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}
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double xElum2, yElum2, rhoElum2;
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if( detGeo.elumPos2 != 0 ) {
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tree->Branch("xElum2", &xElum2, "xElum2/D");
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tree->Branch("yElum2", &yElum2, "yElum2/D");
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tree->Branch("rhoElum2", &rhoElum2, "rhoElum2/D");
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}
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///in case need other recoil detector.
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double xRecoil1, yRecoil1, rhoRecoil1;
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if( detGeo.recoilPos1 != 0 ){
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tree->Branch("xRecoil1", &xRecoil1, "xRecoil1/D");
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tree->Branch("yRecoil1", &yRecoil1, "yRecoil1/D");
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tree->Branch("rhoRecoil1", &rhoRecoil1, "rhoRecoil1/D");
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}
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double xRecoil2, yRecoil2, rhoRecoil2;
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if( detGeo.recoilPos2 != 0 ){
|
||
|
tree->Branch("xRecoil2", &xRecoil2, "xRecoil2/D");
|
||
|
tree->Branch("yRecoil2", &yRecoil2, "yRecoil2/D");
|
||
|
tree->Branch("rhoRecoil2", &rhoRecoil2, "rhoRecoil2/D");
|
||
|
}
|
||
|
//======= function for e-z plot for ideal case
|
||
|
printf("++++ generate functions\n");
|
||
|
TObjArray * gList = new TObjArray();
|
||
|
gList->SetName("Constant thetaCM lines");
|
||
|
const int gxSize = 50;
|
||
|
TF1 ** gx = new TF1*[gxSize];
|
||
|
TString name;
|
||
|
for( int i = 0; i < gxSize; i++){
|
||
|
name.Form("g%d", i);
|
||
|
gx[i] = new TF1(name, "([0]*TMath::Sqrt([1]+[2]*x*x)+[5]*x)/([3]) - [4]", -1000, 1000);
|
||
|
double thetacm = i * TMath::DegToRad();
|
||
|
double gS2 = TMath::Power(TMath::Sin(thetacm)*gamma,2);
|
||
|
gx[i]->SetParameter(0, TMath::Cos(thetacm));
|
||
|
gx[i]->SetParameter(1, mb*mb*(1-gS2));
|
||
|
gx[i]->SetParameter(2, TMath::Power(slope/betaRect,2));
|
||
|
gx[i]->SetParameter(3, 1-gS2);
|
||
|
gx[i]->SetParameter(4, mb);
|
||
|
gx[i]->SetParameter(5, -gS2*slope);
|
||
|
gx[i]->SetNpx(1000);
|
||
|
gList->Add(gx[i]);
|
||
|
printf("/");
|
||
|
if( i > 1 && i % 40 == 0 ) printf("\n");
|
||
|
}
|
||
|
gList->Write("gList", TObject::kSingleKey);
|
||
|
printf(" %d constant thetaCM functions\n", gxSize);
|
||
|
|
||
|
int n = ExKnown.size();
|
||
|
TObjArray * fList = new TObjArray();
|
||
|
TF1** f = new TF1*[n];
|
||
|
for( int i = 0; i< n ; i++){
|
||
|
name.Form("f%d", i);
|
||
|
f[i] = new TF1(name, "[0] + [1] * x", -1000, 1000);
|
||
|
f[i]->SetParameter(0, y0[i]);
|
||
|
f[i]->SetParameter(1, slope);
|
||
|
f[i]->SetNpx(1000);
|
||
|
fList->Add(f[i]);
|
||
|
printf(".");
|
||
|
}
|
||
|
fList->Write("fList", TObject::kSingleKey);
|
||
|
printf(" %d e-z infinte-small detector functions\n", n);
|
||
|
|
||
|
//--- cal modified f
|
||
|
TObjArray * fxList = new TObjArray();
|
||
|
TGraph ** fx = new TGraph*[n];
|
||
|
vector<double> px, py;
|
||
|
int countfx = 0;
|
||
|
for( int j = 0 ; j < n; j++){
|
||
|
double a = helios.GetDetRadius();
|
||
|
double q = TMath::Sqrt(mb*mb + kCM[j] * kCM[j] );
|
||
|
px.clear();
|
||
|
py.clear();
|
||
|
countfx = 0;
|
||
|
for(int i = 0; i < 100; i++){
|
||
|
double thetacm = TMath::Pi()/TMath::Log(100) * (TMath::Log(100) - TMath::Log(100-i)) ;//using log scale, for more point in small angle.
|
||
|
double temp = TMath::TwoPi() * slope / betaRect / kCM[j] * a / TMath::Sin(thetacm);
|
||
|
double pxTemp = betaRect /slope * (gamma * betaRect * q - gamma * kCM[j] * TMath::Cos(thetacm)) * (1 - TMath::ASin(temp)/TMath::TwoPi()) ;
|
||
|
double pyTemp = gamma * q - mb - gamma * betaRect * kCM[j] * TMath::Cos(thetacm);
|
||
|
if( TMath::IsNaN(pxTemp) || TMath::IsNaN(pyTemp) ) continue;
|
||
|
px.push_back(pxTemp);
|
||
|
py.push_back(pyTemp);
|
||
|
countfx ++;
|
||
|
}
|
||
|
|
||
|
fx[j] = new TGraph(countfx, &px[0], &py[0]);
|
||
|
name.Form("fx%d", j);
|
||
|
fx[j]->SetName(name);
|
||
|
fx[j]->SetLineColor(4);
|
||
|
fxList->Add(fx[j]);
|
||
|
printf(",");
|
||
|
}
|
||
|
fxList->Write("fxList", TObject::kSingleKey);
|
||
|
printf(" %d e-z finite-size detector functions\n", n);
|
||
|
|
||
|
//--- cal modified thetaCM vs z
|
||
|
TObjArray * txList = new TObjArray();
|
||
|
TGraph ** tx = new TGraph*[n];
|
||
|
for( int j = 0 ; j < n; j++){
|
||
|
double a = helios.GetDetRadius();
|
||
|
double q = TMath::Sqrt(mb*mb + kCM[j] * kCM[j] );
|
||
|
px.clear();
|
||
|
py.clear();
|
||
|
countfx = 0;
|
||
|
for(int i = 0; i < 100; i++){
|
||
|
double thetacm = (i + 8.) * TMath::DegToRad();
|
||
|
double temp = TMath::TwoPi() * slope / betaRect / kCM[j] * a / TMath::Sin(thetacm);
|
||
|
double pxTemp = betaRect /slope * (gamma * betaRect * q - gamma * kCM[j] * TMath::Cos(thetacm)) * (1 - TMath::ASin(temp)/TMath::TwoPi());
|
||
|
double pyTemp = thetacm * TMath::RadToDeg();
|
||
|
if( TMath::IsNaN(pxTemp) || TMath::IsNaN(pyTemp) ) continue;
|
||
|
px.push_back(pxTemp);
|
||
|
py.push_back(pyTemp);
|
||
|
countfx ++;
|
||
|
}
|
||
|
|
||
|
tx[j] = new TGraph(countfx, &px[0], &py[0]);
|
||
|
name.Form("tx%d", j);
|
||
|
tx[j]->SetName(name);
|
||
|
tx[j]->SetLineColor(4);
|
||
|
txList->Add(tx[j]);
|
||
|
printf("*");
|
||
|
}
|
||
|
txList->Write("txList", TObject::kSingleKey);
|
||
|
printf(" %d thetaCM-z for finite-size detector functions\n", n);
|
||
|
|
||
|
//========timer
|
||
|
TBenchmark clock;
|
||
|
bool shown ;
|
||
|
clock.Reset();
|
||
|
clock.Start("timer");
|
||
|
shown = false;
|
||
|
|
||
|
//change the number of event into human easy-to-read form
|
||
|
int numEvent = reactionConfig.numEvents;
|
||
|
int digitLen = TMath::Floor(TMath::Log10(numEvent));
|
||
|
TString numEventStr;
|
||
|
if( 3 <= digitLen && digitLen < 6 ){
|
||
|
numEventStr.Form("%5.1f kilo", numEvent/1000.);
|
||
|
}else if ( 6<= digitLen && digitLen < 9 ){
|
||
|
numEventStr.Form("%6.2f million", numEvent/1e6);
|
||
|
}else if ( 9<= digitLen ){
|
||
|
numEventStr.Form("%6.2f billion", numEvent/1e9);
|
||
|
}
|
||
|
printf("\e[32m#################################### generating %s events \e[0m\n", numEventStr.Data());
|
||
|
|
||
|
//====================================================== calculate event
|
||
|
int count = 0;
|
||
|
for( int i = 0; i < numEvent; i++){
|
||
|
bool redoFlag = true;
|
||
|
if( !reactionConfig.isRedo ) redoFlag = false;
|
||
|
do{
|
||
|
|
||
|
//==== Set Ex of A
|
||
|
ExAID = gRandom->Integer(nExA);
|
||
|
ExA = ExAList[ExAID];
|
||
|
reaction.SetExA(ExA);
|
||
|
|
||
|
//==== Set Ex of B
|
||
|
if( ExKnown.size() == 1 ) {
|
||
|
ExID = 0;
|
||
|
Ex = ExKnown[0] + (ExWidth[0] == 0 ? 0 : gRandom->Gaus(0, ExWidth[0]));
|
||
|
}else{
|
||
|
ExID = exDist->GetRandom();
|
||
|
Ex = ExKnown[ExID]+ (ExWidth[ExID] == 0 ? 0 : gRandom->Gaus(0, ExWidth[ExID]));
|
||
|
}
|
||
|
reaction.SetExB(Ex);
|
||
|
|
||
|
//==== Set incident beam
|
||
|
KEA = reactionConfig.beamEnergy;
|
||
|
if( reactionConfig.beamEnergySigma == 0 ){
|
||
|
KEA = reactionConfig.beamEnergy;
|
||
|
}else{
|
||
|
KEA = gRandom->Gaus(reactionConfig.beamEnergy, reactionConfig.beamEnergySigma);
|
||
|
}
|
||
|
theta = 0.0;
|
||
|
if( reactionConfig.beamAngleSigma == 0 ){
|
||
|
theta = reactionConfig.beamAngle;
|
||
|
}else{
|
||
|
theta = gRandom->Gaus(reactionConfig.beamAngle, reactionConfig.beamAngleSigma);
|
||
|
}
|
||
|
phi = 0.0;
|
||
|
|
||
|
//==== for taregt scattering
|
||
|
reaction.SetIncidentEnergyAngle(KEA, theta, 0.);
|
||
|
reaction.CalReactionConstant();
|
||
|
TLorentzVector PA = reaction.GetPA();
|
||
|
|
||
|
//depth = 0;
|
||
|
if( isTargetScattering ){
|
||
|
//==== Target scattering, only energy loss
|
||
|
depth = targetThickness * gRandom->Rndm();
|
||
|
msA.SetTarget(density, depth);
|
||
|
TLorentzVector PAnew = msA.Scattering(PA);
|
||
|
KEAnew = msA.GetKE()/reactionConfig.beamA;
|
||
|
reaction.SetIncidentEnergyAngle(KEAnew, theta, phi);
|
||
|
reaction.CalReactionConstant();
|
||
|
Ecm = reaction.GetCMTotalKE();
|
||
|
}
|
||
|
|
||
|
//==== Calculate thetaCM, phiCM
|
||
|
if( distFile->IsOpen()){
|
||
|
dist = (TF1 *) distList->At(ExID);
|
||
|
thetaCM = dist->GetRandom() / 180. * TMath::Pi();
|
||
|
}else{
|
||
|
thetaCM = TMath::ACos(2 * gRandom->Rndm() - 1) ;
|
||
|
}
|
||
|
|
||
|
double phiCM = TMath::TwoPi() * gRandom->Rndm();
|
||
|
|
||
|
//==== Calculate reaction
|
||
|
TLorentzVector * output = reaction.Event(thetaCM, phiCM);
|
||
|
TLorentzVector Pb = output[2];
|
||
|
TLorentzVector PB = output[3];
|
||
|
|
||
|
//==== Calculate energy loss of scattered and recoil in target
|
||
|
if( isTargetScattering ){
|
||
|
if( Pb.Theta() < TMath::PiOver2() ){
|
||
|
msb.SetTarget(density, targetThickness - depth);
|
||
|
}else{
|
||
|
msb.SetTarget(density, depth);
|
||
|
}
|
||
|
Pb = msb.Scattering(Pb);
|
||
|
TbLoss = msb.GetKELoss();
|
||
|
msB.SetTarget(density, targetThickness - depth);
|
||
|
PB = msB.Scattering(PB);
|
||
|
}else{
|
||
|
TbLoss = 0;
|
||
|
}
|
||
|
|
||
|
//======= Decay of particle-B
|
||
|
int decayID = 0;
|
||
|
int new_zB = reactionConfig.recoilHeavyZ;
|
||
|
if( reactionConfig.isDecay){
|
||
|
|
||
|
//decayID = decay.CalDecay(PB, Ex, 0, phiCM + TMath::Pi()/2.); // decay to ground state
|
||
|
decayID = decay.CalDecay(PB, Ex, 0, phiCM + TMath::Pi()/2); // decay to ground state
|
||
|
if( decayID == 1 ){
|
||
|
PB = decay.GetDaugther_D();
|
||
|
//decayTheta = decay.GetAngleChange();
|
||
|
decayTheta = decay.GetThetaCM();
|
||
|
new_zB = reactionConfig.heavyDecayZ;
|
||
|
}else{
|
||
|
decayTheta = TMath::QuietNaN();
|
||
|
}
|
||
|
}
|
||
|
|
||
|
//################################### tree branches
|
||
|
//===== reaction
|
||
|
thetab = Pb.Theta() * TMath::RadToDeg();
|
||
|
thetaB = PB.Theta() * TMath::RadToDeg();
|
||
|
|
||
|
Tb = Pb.E() - Pb.M();
|
||
|
TB = PB.E() - PB.M();
|
||
|
|
||
|
phib = Pb.Phi() * TMath::RadToDeg();
|
||
|
phiB = PB.Phi() * TMath::RadToDeg();
|
||
|
|
||
|
//==== Helios
|
||
|
|
||
|
///printf(" thetaCM : %f \n", thetaCM * TMath::RadToDeg());
|
||
|
|
||
|
if( Tb > 0 || TB > 0 ){
|
||
|
helios.CalArrayHit(Pb, reaction.GetCharge_b());
|
||
|
helios.CalRecoilHit(PB, new_zB);
|
||
|
hit = 2;
|
||
|
while( hit > 1 ){ hit = helios.DetAcceptance(); } /// while hit > 1, goto next loop;
|
||
|
|
||
|
trajectory orb_b = helios.GetTrajectory_b();
|
||
|
trajectory orb_B = helios.GetTrajectory_B();
|
||
|
|
||
|
e = helios.GetEnergy() + gRandom->Gaus(0, detGeo.eSigma);
|
||
|
|
||
|
double ranX = gRandom->Gaus(0, detGeo.zSigma);
|
||
|
z = orb_b.z + ranX;
|
||
|
detX = helios.GetDetX() + ranX;
|
||
|
|
||
|
z0 = orb_b.z0;
|
||
|
t = orb_b.t;
|
||
|
loop = orb_b.loop;
|
||
|
detID = orb_b.detID;
|
||
|
detRowID = orb_b.detRowID;
|
||
|
rho = orb_b.rho;
|
||
|
rhoArray = orb_b.R;
|
||
|
|
||
|
xArray = orb_b.x;
|
||
|
yArray = orb_b.y;
|
||
|
|
||
|
|
||
|
//ELUM
|
||
|
if( detGeo.elumPos1 != 0 ){
|
||
|
xElum1 = helios.GetXPos(detGeo.elumPos1);
|
||
|
yElum1 = helios.GetYPos(detGeo.elumPos1);
|
||
|
rhoElum1 = helios.GetR(detGeo.elumPos1);
|
||
|
}
|
||
|
if( detGeo.elumPos2 != 0 ){
|
||
|
xElum2 = helios.GetXPos(detGeo.elumPos2);
|
||
|
yElum2 = helios.GetYPos(detGeo.elumPos2);
|
||
|
rhoElum2 = helios.GetR(detGeo.elumPos2);
|
||
|
}
|
||
|
|
||
|
//Recoil
|
||
|
rhoRecoil = orb_B.R;
|
||
|
tB = orb_B.t;
|
||
|
xRecoil = orb_B.x;
|
||
|
yRecoil = orb_B.y;
|
||
|
rhoB = orb_B.rho;
|
||
|
|
||
|
//other recoil detectors
|
||
|
if ( detGeo.recoilPos1 != 0 ){
|
||
|
xRecoil1 = helios.GetRecoilXPos(detGeo.recoilPos1);
|
||
|
yRecoil1 = helios.GetRecoilYPos(detGeo.recoilPos1);
|
||
|
rhoRecoil1 = helios.GetRecoilR(detGeo.recoilPos1);
|
||
|
}
|
||
|
if ( detGeo.recoilPos2 != 0 ){
|
||
|
xRecoil2 = helios.GetRecoilXPos(detGeo.recoilPos2);
|
||
|
yRecoil2 = helios.GetRecoilYPos(detGeo.recoilPos2);
|
||
|
rhoRecoil2 = helios.GetRecoilR(detGeo.recoilPos2);
|
||
|
}
|
||
|
|
||
|
reaction.CalExThetaCM(e, z, helios.GetBField(), helios.GetDetRadius());
|
||
|
ExCal = reaction.GetEx();
|
||
|
thetaCMCal = reaction.GetThetaCM();
|
||
|
|
||
|
//change thetaCM into deg
|
||
|
thetaCM = thetaCM * TMath::RadToDeg();
|
||
|
|
||
|
//if decay, get the light decay particle on the recoil;
|
||
|
if( reactionConfig.isDecay ){
|
||
|
if( decayID == 1 ){
|
||
|
TLorentzVector Pd = decay.GetDaugther_d();
|
||
|
|
||
|
Td = Pd.E() - Pd.M();
|
||
|
|
||
|
helios.CalRecoilHit(Pd, reactionConfig.heavyDecayZ);
|
||
|
|
||
|
trajectory orb_d = helios.GetTrajectory_B();
|
||
|
rhoRecoil_d = orb_d.R;
|
||
|
xRecoil_d = orb_d.x;
|
||
|
yRecoil_d = orb_d.y;
|
||
|
|
||
|
}else{
|
||
|
rhoRecoil_d = TMath::QuietNaN();
|
||
|
xRecoil_d = TMath::QuietNaN();
|
||
|
yRecoil_d = TMath::QuietNaN();
|
||
|
}
|
||
|
}
|
||
|
|
||
|
}else{
|
||
|
hit = -404;
|
||
|
}
|
||
|
|
||
|
if( hit == 1) count ++;
|
||
|
|
||
|
if( reactionConfig.isRedo ){
|
||
|
if( hit == 1) {
|
||
|
redoFlag = false;
|
||
|
}else{
|
||
|
redoFlag = true;
|
||
|
//printf("%d, %2d, thetaCM : %f, theta : %f, z0: %f \n", i, hit, thetaCM * TMath::RadToDeg(), thetab, helios.GetZ0());
|
||
|
}
|
||
|
}else{
|
||
|
redoFlag = false;
|
||
|
}
|
||
|
|
||
|
}while( redoFlag );
|
||
|
tree->Fill();
|
||
|
|
||
|
//#################################################################### Timer
|
||
|
clock.Stop("timer");
|
||
|
Double_t time = clock.GetRealTime("timer");
|
||
|
clock.Start("timer");
|
||
|
|
||
|
if ( !shown ) {
|
||
|
if (fmod(time, 10) < 1 ){
|
||
|
printf( "%10d[%2d%%]| %8.2f sec | expect: %5.1f min \n", i, TMath::Nint((i+1)*100./numEvent), time , numEvent*time/(i+1)/60);
|
||
|
shown = 1;
|
||
|
}
|
||
|
}else{
|
||
|
if (fmod(time, 10) > 9 ){
|
||
|
shown = 0;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
}
|
||
|
|
||
|
saveFile->Write();
|
||
|
saveFile->Close();
|
||
|
|
||
|
distFile->Close();
|
||
|
|
||
|
printf("=============== done. saved as %s. count(hit==1) : %d\n", saveFileName.Data(), count);
|
||
|
//gROOT->ProcessLine(".q");
|
||
|
}
|