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Geant4 SVD/TRAK Status

Geant4 SVD/TRAK Status. A.Kibayashi Jan. 9, 2008 SVD Soft Meeting. Motivation. Request from THara-san To review what’s done, what needs to be done Let us rethink our strategy Short term (study w/ LoI design) Long term (towards SuperB recon. & tracking)

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Geant4 SVD/TRAK Status

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  1. Geant4 SVD/TRAK Status A.Kibayashi Jan. 9, 2008 SVD Soft Meeting

  2. Motivation • Request from THara-san • To review what’s done, what needs to be done • Let us rethink our strategy • Short term (study w/ LoI design) • Long term (towards SuperB recon. & tracking) • To get experts’ opinions, suggestions, help, etc…

  3. SVD versions Finish SVD5 ASAP, in svn! Clean up versions? don’t want too many versions… DatSVD4_TrueHit, DatSVD5_TrueHit???

  4. StatusSVD5 G4Meeting-071116

  5. SVD5cluster association eff. True hits Associated hits • 2GeV Single muon • 2D hits in G4, truehit location smeared by incident angle dependent sigma (also read by TRAK), cluster width=0 Eff. FWD slanted DSSDs DSSD no.

  6. What needs to be doneLoI • TRAK • Fix hit association problem ASAP, commit in svn • Compare w/ Kawasaki-san’s TRAKERR study (Request to Kawasaki-san, PLS produce resolutions w/ LoI geom. also.) • Geom. • Detailed config. e.g., DSSDs/ladder • Clustering • G4superb-svd • datsvd_truehit: almost done, implement from b20071227 • datsvd_hit: rla? Amp? 512 channels/sensor? Hybrid? • dE/dx & hit postion / step produced • Recsvd • Not touched at all yet, should be included in TRAK? • Backgrounds For 1st report of LoI study, ‘realistic’ cluster and backgrounds may not be worth the effort… Need longer term outlook

  7. Clustering/Tracking • Goal – 2 years • Structure? g4-trak-cluster • Completely new tracking code? • Clustering included in tracking? • Want – flexibility • Geom. change should be easily modified • TRAK should read geom. info. from G4 • How? As C++ objects? Panther? XML? • What info? • People • Need experts’ opinions/help (Thara-san, Karim-san, Ozaki-san) • New people… • Others?

  8. VTX configuration (LoI) Based on LEP-SI model

  9. SVD5 DSSD numbering cylinder FWD slants 75 87 86 76 123 135 74 134 124 88 63 51 122 62 85 52 111 99 110 136 50 133 100 98 64 39 61 77 73 112 40 38 109 125 121 53 27 49 101 28 26 97 89 41 37 137 84 132 65 113 29 25 60 108 78 126 36 72 54 102 30 0-11 12-23 24 96 48 120 42 114 31 35 119 66 71 143 90 138 43 47 95 103 32 34 107 33 59 55 127 46 131 115 44 79 118 83 104 45 67 106 70 142 139 116 105 117 58 56 91 94 68 57 69 130 128 141 80 140 129 82 93 92 81

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