ИСТИНА

Abstract Using the previously developed method for finding the alignment of the Time Projection Camera (TPC) in the MPD detector, we study the effect of misalignment on the reconstructed parameters of a charged particle track, such as transverse momentum and velocity. The concept of a misalignment unit is introduced for TPC. By simulating the reaction of the TPC to charged particles, we study the distortions that are introduced into the reconstructed track parameters depending on the magnitude of the misalignment. The effect of misalignment on the reconstructed track parameters in the MPD TPC is negligible. There is a systematic shift in the measured transverse momentum, depending on the track projection width. This width is determined by the gas and electrical field conditions within the detector chamber. Alignment tools developed for the MPD Time Projection Chamber allow us to estimate this width using experimental data and apply corrections to the reconstructed track parameters.