The RICH detector of the NA62 experiment

作     者：Viacheslav Duk 

作者机构：INFN Perugia Via A. Pascoli Perugia 06123 Italy † For the RICH working group of the NA62 experiment: INFN Perugia INFN Florence CERN. 

出 版 物：《International Journal of Modern Physics: Conference Series》 

年 卷 期：2016年第ijmpcs卷第44期

学科分类：07[理学] 0702[理学-物理学] 

主　　题：kaon decays RICH detectors NA62 experiment 

摘      要：The NA62 experiment at CERN is aimed at measuring the ultra-rare decay K + → π + ν ν with 10% accuracy. One of the detectors that is crucial for the rejection of background events is the RICH detector: a gas based detector aimed at π / μ separation in the 15–35 GeV/c momentum range with an inefficiency of less than 1%. The RICH must also provide a very precise time measurement (with the time resolution ∼100 ps) to correctly associate the π + with the parent K + particle measured by an upstream detector. This paper contains the detailed description of the RICH detector, its readout, and the results of the commissioning run at CERN in 2014.