Time calibration for the SciFi Tracker at SND@LHC using DESY testbeam data

A Scintillating Fibre Tracker with timing information was developed by LPHE at EPFL. To evaluate its timing and tracking performance, a test beam campaign was organized at DESY in October 2019. By using this data, the different time delays and offsets that could influence the time resolution measurement are quantified. Besides, several algorithms to measure the track time in each event were developed. The main goal of this project is to use the time information of the track in the time calibration of the SciFi Tracker leading to a time resolution of about 250ps, a √2 factor better than the previous result of σCTR= 350 ps. This measurement procedure is also verified by introducing artificially calibration errors that are recovered after using the track information.