2007/01/23 by V. Roberfroid, Roberfroid, V.
Engineering · Physics and Astronomy · #Computational Physics (physics.comp-ph) #Data Analysis #FOS: Physical sciences #Particle Accelerators and Free-Electron Lasers #Particle Detector Development and Performance #Particle physics theoretical and experimental studies #Statistics and Probability (physics.data-an)
paper · pdf · doi:10.48550/arxiv.physics/0701271
openalex publication_date 2007/01/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
At the center of the ZEUS detector situated on the collider HERA at DESY in Hamburg, a Micro Vertex Detector has been installed in 2000/01. Situated close to the beam line, this subdetector is designed to measure precisely the tracks near the interaction point (the vertex). A package called KFFIT is designated to perform the track fit of the Micro Vertex Detector hits using a Kalman Filter. This paper is a report of all improvements done in this package. After a brief description of the algorithm, the improvements of KFFIT will be presented comparing the last version (v10 released in December 2006) to the initial one (v1 released in December 2005 (=v2005a.1)).