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Muon Track Reconstruction in CBM

KIP. Muon Track Reconstruction in CBM. I. Kisel KIP , Uni-Heidelberg / LIT, JINR, Dubna. Workshop on Muon Detection in CBM GSI, October 16-18, 2006. Current Approach in the Track Reconstruction. Track model r = (x, y, t x , t y , q/p).

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Muon Track Reconstruction in CBM

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  1. KIP Muon Track Reconstruction in CBM I. Kisel KIP, Uni-Heidelberg / LIT, JINR, Dubna Workshop on Muon Detection in CBM GSI, October 16-18, 2006

  2. Current Approach in the Track Reconstruction • Track model r = (x, y, tx, ty, q/p). • Because of high track density, thicknesses of the absorbers are inverse proportional to the number of tracks (for instance, thickness = 5, 10, 20, 30 and 120 cm). • Tracks found in STS are used as seeds for track following in the muon detector. I. Kisel

  3. Track Following in the Muon Detector (x,y,tx,ty,q/p)|STS (x,y,tx,ty,q/p)|MU1 • Take an STS track. • Propagate it through an absorber. • Propagate it to a muon detection plane. • Find a hit closest to the propagated track position. • Add the hit to the track and update the track parameters. • Repeat from 2 or 3 until all muon detection planes are included. I. Kisel

  4. Standalone Track Finding in the Muon Detector (x,y,tx,ty,q/p)|MU4-6 (x,y,tx,ty,q/p)|MU1-3 (x,y,tx,ty,q/p)|MU1-3 (x,y,tx,ty,q/p)|STS • Find short track segments between absorbers (therefore, 3 detection planes). • Propagate them through an absorber. • Propagate them to a muon detection plane. • Find segments which match in terms of c2 to the propagated track segments. • Collect the matched track segments into track candidates. • Apply track competition between the track candidates in order to select tracks. I. Kisel

  5. Standalone Track Finding in the Muon Detector with MF (x,y,tx,ty,q/p)|MU4-6 (x,y,tx,ty,q/p)|MU1-3 (x,y,tx,ty,q/p)|MU1-3 (x,y,tx,ty,q/p)|STS • Find short track segments between absorbers (therefore, 3 detection planes + MF). • Propagate them through an absorber. • Propagate them to a muon detection plane. • Find segments which match in terms of c2 to the propagated track segments. • Collect the matched track segments into track candidates. • Apply track competition between the track candidates in order to select tracks. I. Kisel

  6. Possible Approaches in the Track Reconstruction I. Kisel

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