NA62 RICH performance: measurement and optimization

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

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment（2020）

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摘要

The Ring Imaging Cherenkov detector of the NA62 experiment at CERN SPS was commissioned in 2014, but the optimal performance was achieved in 2016 after the precise mirror alignment with reconstructed tracks. The measurement and monitoring of basic performance parameters is discussed: ring radius resolution, ring centre resolution, single hit resolution and mean number of hits per ring. The performance is measured with 2016 data on the positron sample. Different contributions to the resolutions are calculated.

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关键词

Kaon decays,RICH detector,Detector performance

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