1. tau-ID dec 19th 2002Auguste Besson 1 CTT for taus preliminary studies

2. tau-ID dec 19th 2002Auguste Besson 2 CTT system 5 subsystems 5 subsystems - CFT/CPSax - STT - CFT stereo - CPS stereo - FPS 6 steps 6 steps - AFE - MIX - DFE. DFEA - COL - BC - TM

3. 3 List of L1 CTT terms 1] =TTK(1,1) // (number of tracks; momentum[1,2,3,4 = 1.5,3,5,10 GeV]) 2] =TTK(1,2) 3] =TTK(1,3) 4] =TTK(1,4) 5] =TTK(2,1) 6] =TTK(2,2) 7] =TTK(2,3) 8] =TTK(2,4) 9] =TEL(L,1) (preshower deposition[L,H]; momentum) 10] =TEL(L,2) 11] =TEL(L,3) 12] =TEL(L,4) 13] =TPQ(1,1) // (number of low pt bin tracks with L deposition, quadrant) 14] =TPQ(1,2) 15] =TPQ(1,3) 16] =TPQ(1,4) 17] =TPQ(2,1) 18] =TPQ(2,2) 19] =TPQ(2,3) 20] =TPQ(2,4) 21] =TNQ(1,L,1) // (number of preshower clusters; quadrant) 22] =TNQ(1,L,2) 23] =TNQ(1,L,3) 24] =TNQ(1,L,4) 25] =TNQ(2,L,1) 26] =TNQ(2,L,2) 27] =TNQ(2,L,3) 28] =TNQ(2,L,4) 29] =TDL(SS,1) // (charged pair[SS,OS,NS]; momentum) 30] =TDL(SS,3) 31] =TDL(OS,1) 32] =TDL(OS,3) 33] =TDL(NS,1) 34] =TDL(NS,3) 35] =TIS(3) // (>=1 Isolated track with pT>5, 10 GeV) 36] =TIS(4) 37] =TDS(SS) // (charged pair) 38] =TDS(OS) 39] =THT(1) // (Fraction of total CFT doublets hit): 40] =THT(2) // 6/11/02 - the three thresholds are hard-coded in CTTT.cpp to be 5, 10 and 20% 41] =THT(3) 42] =TAC(<35) // (acoplanarity above below 35 sectors) 43] =TAC(>35) 44] =TIQ(1) // (If >=1 isolated track in quadrant i, with pT > 5 GeV) 45] =TIQ(2) 46] =TIQ(3) 47] =TIQ(4) 48] =TOC(1,1) // (number of octants above threshold, threshold in momentum bins) 49] =TOC(2,1) 50] =TOC(1,2) 51] =TOC(2,2) 52] =TTA(1) // (sectors with single cluster tau candidate) 53] =TTA(2) // (sectors with double cluster tau candidate) 54] =TIL // (ioslated track(s) with low home-sector occupancy)

4. tau-ID dec 19th 2002Auguste Besson 4 trigsim certification files: /prj_root/843/trigsim_1/certcertification files: /prj_root/843/trigsim_1/cert –p13.03.00 release –p130300_wtaunu.root, p130300_ztautau.root, p130300_qcd.root,p130300_wenu.root. 7 MC tau types: based on MC decays7 MC tau types: based on MC decays 1. = e + 1. = e + 2. =  + 2. =  + 3. =   + (type 1) 4. =   + + n  0 (type 2) 5. = 3   + (type 3) 6. = 3   + + n  0 (type 3) 7. = other hadronic Reco types 1.   + 1.   + 2. 1 trk + n  0 3. more than 1 trk(3 prongs)

5. tau-ID dec 19th 2002 efficiencies 54 terms54 terms QCD pT>20GeVQCD pT>20GeV no acceptance cutno acceptance cut black W    red Z   blue/dashed QCD green/dashed W  e green/dashed W  e bbterm number efficiency

6. tau-ID dec 19th 2002Auguste Besson 6 W    : efficiencies by MC tau type 7 MC types.7 MC types. BBterms eff MCtau type 1 BBterms eff MCtau type 2 BBterms eff MCtau type 3 BBterms eff MCtau type 4 BBterms eff MCtau type 5 BBterms eff MCtau type 6 BBterms eff MCtau type 7 MCtau decay type

7. tau-ID dec 19th 2002 7 terms:terms: 3, 4, 35, 36,... isolated trackisolated track 44 - 47 =TIQ(i) (If >=1 isolated track in quadrant i, with pT > 5 GeV) W    efficiency vs. QCD efficiency QCD efficiency W    efficiency term number

8. tau-ID dec 19th 2002Auguste Besson 8 eff W-tau nu vs QCD eff MC 3 : W-tau nu vs QCD eff MC 4 : W-tau nu vs QCD eff MC 5 : W-tau nu vs QCD 3, 4, 35, 36 44-47 44-47 4, 35, 36 44-47 3, 4, 6, 7, 11

9. tau-ID dec 19th 2002Auguste Besson 9 Z    efficiency vs. QCD efficiency QCD efficiency Z    efficiency term number

10. tau-ID dec 19th 2002Auguste Besson 10 questions from a non expert trigger terms :trigger terms : –tried to understand which terms could be interesting some terms should be ‘’added‘’some terms should be ‘’added‘’ –isolated track in quadrant How combine calorimeter and CFT trigger ? Which level ?How combine calorimeter and CFT trigger ? Which level ? L3tau information ? algorithms ?L3tau information ? algorithms ? Global approach or specific MC tau type ?Global approach or specific MC tau type ? inputs/comments welcome and needed.inputs/comments welcome and needed.