Precise Mirror Alignment and Basic Performance of the RICH Detector of the NA62 Experiment at CERN
G. Anzivino, M. Barbanera, A. Bizzeti, F. Brizioli, F. Bucci, A., Cassese, P. Cenci, B. Checcucci, R. Ciaranfi, V. Duk, J. Engelfried, N., Estrada-Tristan, E. Iacopini, E. Imbergamo, G. Latino, M. Lenti, R. Lollini,, M. Pepe, M. Piccini, R. Volpe
TL;DR
This paper details the precise mirror alignment process and performance evaluation of the RICH detector in the NA62 experiment at CERN, emphasizing improved particle identification accuracy.
Contribution
It introduces a detailed mirror alignment procedure and performance metrics assessment for the RICH detector in the NA62 experiment.
Findings
Mirror alignment achieved with high precision
Measured resolutions for ring radius and center
Quantified impact of residual misalignment on performance
Abstract
The Ring Imaging Cherenkov detector is crucial for the identification of charged particles in the NA62 experiment at the CERN SPS. The detector commissioning was completed in 2016 by the precise alignment of mirrors using reconstructed tracks. The alignment procedure and measurement of the basic performance are described. Ring radius resolution, ring centre resolution, single hit resolution and mean number of hits per ring are evaluated for positron tracks. The contribution of the residual mirror misalignment to the performance is calculated.
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