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Tungsten-Silicon Luminosity Detector with Flat Geometry

Tel Aviv University H igh E nergy P hysics Experimental Group. Tungsten-Silicon Luminosity Detector with Flat Geometry. Ronen Ingbir. Tel Aviv University H igh E nergy P hysics Experimental Group. Cell Size. 1cm*1cm. 1 Radiation length. 1 Radius Moliere.

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Tungsten-Silicon Luminosity Detector with Flat Geometry

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  1. Tel Aviv University High Energy Physics Experimental Group Tungsten-Silicon LuminosityDetector with Flat Geometry Ronen Ingbir Tel Aviv University High Energy Physics Experimental Group

  2. Cell Size 1cm*1cm 1 Radiation length 1 Radius Moliere Tel Aviv University High Energy Physics Experimental Group Detector Design 15 cylinders * 24 sectors * 30 rings = 10800 cells 0.31 cm Silicon 0.34 cm Tungsten Tel Aviv University High Energy Physics Experimental Group

  3. Tel Aviv University High Energy Physics Experimental Group Detector placement 8 cm 28 cm 3.05 m Tel Aviv University High Energy Physics Experimental Group

  4. Tel Aviv University High Energy Physics Experimental Group Shower position Readout 250 GeV Sectors position (deg) Cylinders position (cm) Rings position (cm) Tel Aviv University High Energy Physics Experimental Group

  5. Tel Aviv University High Energy Physics Experimental Group Bhabha Scattering BHWIDE MC Simulation +

  6. Tel Aviv University High Energy Physics Experimental Group Bhabha MC output 250 GeV Mean = 2.3 Photon Number Positron Energy (GeV) Photon Energy (GeV) Electron Energy (GeV) Tel Aviv University High Energy Physics Experimental Group

  7. Tel Aviv University High Energy Physics Experimental Group Detector Simulation Barbie -Geant 3.21 which includes detector description for Tesla detector The MC of physical process is the output of bhabha scattering The Barbie program was given us by Leszek Suszycki Tel Aviv University High Energy Physics Experimental Group

  8. Tel Aviv University High Energy Physics Experimental Group Shower Z profile 400 GeV Mean 313.2 250 GeV Mean 312.9 100 GeV Mean 312.5 Z rec (cm) Z rec (cm) Z rec (cm) Tel Aviv University High Energy Physics Experimental Group

  9. Cut = Beam Energy * 0.014 Tel Aviv University High Energy Physics Experimental Group Detector Energy Readout 400 GeV 250GeV 100 GeV Tel Aviv University High Energy Physics Experimental Group

  10. Tel Aviv University High Energy Physics Experimental Group Energy Resolution & Calibration Beam energy = 62.32 * Detector Energy + 0.36 Tel Aviv University High Energy Physics Experimental Group

  11. Rec - Gen (rad) Rec - Gen(deg) Mean –0.2361 Sigma 3.240 Mean 0.2961E-03 Sigma 0.5809E-03 Mean –0.7009 Sigma 1.917 Mean 0.0975E-04 Sigma 0.2167E-03 Tel Aviv University High Energy Physics Experimental Group Angular weighting 250 GeV Tel Aviv University High Energy Physics Experimental Group

  12. Tel Aviv University High Energy Physics Experimental Group Angular Resolution 0.2E-03 0.035 Tel Aviv University High Energy Physics Experimental Group

  13. Tel Aviv University High Energy Physics Experimental Group Acceptance with old geometry Acceptance >30mrad Tel Aviv University High Energy Physics Experimental Group

  14. Energy (Gev) Energy (Gev) gen (rad) gen (rad) rec (rad) rec (rad) Tel Aviv University High Energy Physics Experimental Group Cuts with New Geometry and bhabha MC 250 GeV No cuts energy and angle cuts Tel Aviv University High Energy Physics Experimental Group

  15. Rec - Gen 28 mrad Tel Aviv University High Energy Physics Experimental Group New Acceptance Rec Gen Rec (rad) Gen (rad) Tel Aviv University High Energy Physics Experimental Group

  16. Tel Aviv University High Energy Physics Experimental Group Detector depth Tel Aviv University High Energy Physics Experimental Group

  17. Tel Aviv University High Energy Physics Experimental Group Optimization Num. Cylinders 14 28 56 Tel Aviv University High Energy Physics Experimental Group

  18. Tel Aviv University High Energy Physics Experimental Group Background studies we included in the BHWIDE a background simulation routine called CIRCE. This was suggested to us byK. Moning Tel Aviv University High Energy Physics Experimental Group

  19. Tel Aviv University High Energy Physics Experimental Group Background-1 1% Tel Aviv University High Energy Physics Experimental Group

  20. Tel Aviv University High Energy Physics Experimental Group Background-2 Num Photons =1.9 1% 3% Tel Aviv University High Energy Physics Experimental Group

  21. Tel Aviv University High Energy Physics Experimental Group Background-3 Pos(rad) Ele(rad) Pos(rad) Ele(rad) Tel Aviv University High Energy Physics Experimental Group

  22. Tel Aviv University High Energy Physics Experimental Group Background-4 Tel Aviv University High Energy Physics Experimental Group

  23. Tel Aviv University High Energy Physics Experimental Group Next Steps….. A. Analyses of detector + background MC B. Cross checks in Geant 4 C. Energy and Angular resolution improvement.

  24. Tel Aviv University High Energy Physics Experimental Group The End Tel Aviv University High Energy Physics Experimental Group

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