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void get_xyzEBrechits(){
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TChain *ch = new TChain("Analysis");
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ch->Add("xyzECAL.root");
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ch->SetBranchAddress("xEBAll",xEBAll);
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ch->SetBranchAddress("yEBAll",yEBAll);
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ch->SetBranchAddress("zEBAll",zEBAll);
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ch->SetBranchAddress("etaEBAll",etaEBAll);
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ch->SetBranchAddress("phiEBAll",phiEBAll);
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ch->SetBranchAddress("dxEBAll",dxEBAll);
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ch->SetBranchAddress("dyEBAll",dyEBAll);
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ch->SetBranchAddress("dzEBAll",dzEBAll);
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ch->SetBranchAddress("xEEAll",xEEAll);
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ch->SetBranchAddress("yEEAll",yEEAll);
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ch->SetBranchAddress("zEEAll",zEEAll);
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ch->SetBranchAddress("dxEEAll",dxEEAll);
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ch->SetBranchAddress("dyEEAll",dyEEAll);
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ch->SetBranchAddress("dzEEAll",dzEEAll);
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ch->SetBranchAddress("etaEEAll",etaEEAll);
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ch->SetBranchAddress("phiEEAll",phiEEAll);
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ch->GetEntry(0);
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ch->Delete();
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cout<<"got xyzEcal.."<<endl;
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////
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void convxtalid(Int_t &nphi,Int_t &neta)
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{
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// Changed to what Yong's convention; output will give just two indices
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// phi is unchanged; only eta now runs from
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//
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// 03/01/2008 changed to the new definition in CMSSW. The output is still the same...
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// Barrel only
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// Output nphi 0...359; neta 0...84; nside=+1 (for eta>0), or 0 (for eta<0).
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// neta will be [-85,-1] , or [0,84], the minus sign indicates the z<0 side.
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if(neta > 0) neta -= 1;
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if(nphi > 359) nphi=nphi-360;
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// final check
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if(nphi >359 || nphi <0 || neta< -85 || neta > 84)
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{
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cout <<" output not in range: "<< nphi << " " << neta << " " <<endl;
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exit(1);
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}
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} //end of convxtalid
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// Calculate the distance in xtals taking into account possibly different sides
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// change to coincide with yongs definition
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Int_t diff_neta(Int_t neta1, Int_t neta2){
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Int_t mdiff;
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mdiff=abs(neta1-neta2);
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return mdiff;
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}
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// Calculate the absolute distance in xtals taking into account the periodicity of the Barrel
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Int_t diff_nphi(Int_t nphi1,Int_t nphi2) {
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Int_t mdiff;
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mdiff=abs(nphi1-nphi2);
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if (mdiff > (360-abs(nphi1-nphi2))) mdiff=(360-abs(nphi1-nphi2));
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return mdiff;
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}
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// Calculate the distance in xtals taking into account possibly different sides
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// Then the distance would be from the 1st to the 2nd argument
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// _s means that it gives the sign; the only difference from the above !
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// also changed to coincide with Yong's definition
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Int_t diff_neta_s(Int_t neta1, Int_t neta2){
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Int_t mdiff;
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mdiff=(neta1-neta2);
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return mdiff;
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}
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// Calculate the distance in xtals taking into account the periodicity of the Barrel
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Int_t diff_nphi_s(Int_t nphi1,Int_t nphi2) {
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Int_t mdiff;
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if(abs(nphi1-nphi2) < (360-abs(nphi1-nphi2))) {
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mdiff=nphi1-nphi2;
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}
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else {
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mdiff=360-abs(nphi1-nphi2);
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if(nphi1>nphi2) mdiff=-mdiff;
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}
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return mdiff;
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}
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