A sketch of the stitching procedure showing a cosmic-ray muon crossing from top-to-bottom in the (x,y) projection. The two initial reconstructed particles (red and blue) have been independently reconstructed in the two central drift volumes. Based on pointing information and consistent y-z coordinates, they have been identified as parts of the same cosmic-ray muon and merged to form the black particle after applying a shift in drift position to each of the two initial reconstructed particles.

Contexts in source publication

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... should yield a single trajectory that is continuous in both its position and direction across the boundary between drift volumes. The separate component particles can then be stitched together. The t 0 corrections identified by this stitching process allow for a single coherent 3D particle trajectory to be reconstructed, as demonstrated in Fig. 4. Performance metrics assessing the stitching performance and a discussion of how the SCE affects the measured t 0 are presented in Sec. 5.1. Based on pointing information and consistent y-z coordinates, they have been identified as parts of the same cosmic-ray muon and merged to form the black particle after applying a shift in drift ...

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... is possible to identify the time, t 0 , that a cosmic-ray muon enters the LArTPC if the reconstructed particle was stitched between drift volumes by the process discussed in Sec. 3.1 and shown visually in Fig. 4. The distribution of the t 0 residual, the difference between the reconstructed and true value of t 0 , for stitched cosmic-ray muons is shown in Fig. 11. The dashed black histogram shows the case where no space charge distortion was applied to the simulation and the distribution is centred on zero, as expected. Once space charge is ...