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Collaborative Workshop on Geometries and Coordinate Systems in Particle Physics

Join experts at the Discussion on Geometries Workshop led by Christian Grah at TAU on September 18-19, 2005. This workshop focuses on the comparison and analysis of different coordinate systems, specifically Geant3-like (Brahms) and Geant4-like (Mokka) configurations. Key topics include the geometrical background for LumiCal and BeamCal, angular coverage, and calibration techniques to prevent dead areas in the detector setup. Discover innovative solutions to enhance particle detection and ensure accurate background measurements.

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Collaborative Workshop on Geometries and Coordinate Systems in Particle Physics

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  1. Discussion on Geometries Christian Grah FCAL Collaboration Workshop TAU, September 18-19, 2005

  2. Coordinate systems Coord.-System1: Geant3 like (Brahms): Coord.-System 2: Geant4 like (Mokka): Ch.Grah: Backgrounds

  3. Positions/Geometries • Center Lumi- and BeamCal on outgoing beam. • LumiCal: ±3.05cm • BeamCal: ±3.65cm (z=370 is also used) • Angular Coverage: • LumiCal: 8(13) to 28cm26(43) to 92 mrad • BeamCal: 1.5(2) to 10(16)cm4(5) to 28(44) • Option: misplace BeamCal and keep aperture small...how to prevend dead area? Ch.Grah: Backgrounds

  4. BeamCal Segmentation 45/60° calo segment (nseg=8/6) using 360-opening angle/nseg for 20 mrad Ch.Grah: Backgrounds

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