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Mozaic trigger system for high transverse momentum physics

Mozaic trigger system for high transverse momentum physics. Elso Dddd Ddd. Ffffffffffffff Dddddddddd Ddddddddd Ddddddd. Motivation for new measurements below = 20 GeV. Practically no high or medium P t data between E inc = 24 and 200 GeV

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Mozaic trigger system for high transverse momentum physics

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  1. Mozaic trigger system for high transverse momentum physics Elso Dddd Ddd Ffffffffffffff Dddddddddd Ddddddddd Ddddddd

  2. Motivation for new measurements below = 20 GeV Practically no high or medium Pt data between Einc = 24 and 200 GeV Mysterious transition around 80-90 GeV: convex versus concave spectra Energy threshold for Jet-quenching? Emergence of Cronin-effect in pA interactions is completely unknown energy dependence centrality dependence particle type dependence particle correlations Production of Upsilon (9.5 GeV) particles near the threshold. Practically no high or medium Pt data between Einc = 24 and 200 GeV Mysterious transition around 80-90 GeV: convex versus concave spectra Energy threshold for Jet-quenching? Emergence of Cronin-effect in pA interactions is completely unknown energy dependence centrality dependence particle type dependence particle correlations Production of Upsilon (9.5 GeV) particles near the threshold.

  3. Beier (1978) NA49 (CERN) results at 158 FODS (IHEP) at 70 GeV

  4. Special requirements for Y-> e+e- and high pT Extremely high intensity - Pile-up Segmented multi-target - Relaxed vertex precision Straight tracks - High momentum tracks DREAM: 109 interactions/sec

  5. High ( > 5 GeV/c ) momentum  Straight track x,y [cm] Px=Py= 3 GeV/c Pz = 10 GeV/c Px=Py = 1 GeV/c; Pz= 5 GeV/c z [cm]

  6. MAPS vs Hybrid Vertex resolution: dz = 1 mm, dx,dy= 0.05 mm High intensity: radiation hard Practical 4+ 2 + 3 = 9 planes ( 4 Hybrids + 5 strips) Selectivity depends on the availability of TOF information

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