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Enhancing High η Track Reconstruction Efficiency in T2 Experiments

This summary highlights key findings from the collaboration meeting of the Software and Simulation Working Group on June 24, 2008, focusing on track reconstruction in T2 experiments. Critical areas of investigation include high η track selection cuts and the effects of the beam pipe and secondary particles on track efficiency. Detailed studies reveal correlations between Z and η cuts, alongside the impacts of hadronic interactions of secondary particles, particularly pions, on reconstruction efficiency. Further investigations are essential to refine selection criteria and improve performance at high η.

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Enhancing High η Track Reconstruction Efficiency in T2 Experiments

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  1. Summary on T2 Track Reconstruction Mirko Berretti, Giuseppe Latino (Siena University & Pisa INFN) Software and Simulation Working Group – Collaboration Meeting June 24, 2008 Highlights: • A short summary • We need to better understand high  track selection cuts (as you already know …) 1

  2. Beam Pipe Effect: Secondary Particles Effect of beam pipe (I) : pion hadronic interaction  lots of secondary particles cone section at η = 5.53 Each point = <Tracks> per event firing 1000 - with: E = 50 GeV 0 < f < 2p h- = as shown in x axis 1 cone section at η = 5.3 cone section at η = 4.9 T2 2

  3. Track Efficiency with Different Cut Requirements Strong correlation between Z and  cuts.More detailed studies needed to improve efficiency. 3

  4. Secondaries in T2 from 0 with/without Beam-Pipe Main effects from HF lower border and BP cone at ~5.53 4

  5. Secondaries in T2 from - with/without Beam-Pipe Reduced effect from HF lower border Main effect from BP cone at ~5.53 5

  6. Trk Pt related effects on trk rec. ,  due to MF/BP 6

  7. More studies on MF effects (50 GeV -) We need more studies to improve track recon. efficiency at high  No MF, no BP 7

  8. More studies on selection cuts effects (No MF, no BP) As already seen, main effects from  and DZ cuts (strongly correlated) 8

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