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SUMMARY:Misalignment influence on the track reconstruction in the MPD TPC
DTSTART;VALUE=DATE-TIME:20241025T142500Z
DTEND;VALUE=DATE-TIME:20241025T144000Z
DTSTAMP;VALUE=DATE-TIME:20260518T064214Z
UID:indico-contribution-4251@cern.ch
DESCRIPTION:Speakers: Valentin Kuzmin (Moscow State University)\nA method 
 of determining the position of the readout sectors of a time projection ch
 amber using experimental data is proposed. Considering the results of mode
 ling the response of sensitive elements of the time projection chamber of 
 the multipurpose detector (MPD)\, three types of tracks were reconstructed
 : cosmic muons\, beams of the laser detector system\, and muons from the i
 nteraction of nuclei. The accuracy of the MPD TPC alignment finding is inv
 estigated in MC events with different types of tracks. For the Time Projec
 tion Camera\, a measure of deviation of the used alignment from the real o
 ne is introduced. The simulation of track reconstruction shows the systema
 tic dependence of the reconstructed pT on its value. The systematic shift 
 depends on the track projection width which is a function of the gas and t
 he electric field in the camera. The developed alignment tools for the MPD
  TPC allow to estimate its value using experimental data and to introduce 
 the correction in the reconstructed track parameters. The influence of the
  misalignment on reconstructed track parameters is low\n\nhttps://indico.p
 article.mephi.ru/event/436/contributions/4251/
LOCATION: Petrovskiy 2
URL:https://indico.particle.mephi.ru/event/436/contributions/4251/
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