Abstract
The main goal of the NA62 experiment at the CERN SPS accelerator is to measure the branching fraction of the ultra-rare decay K+→π+νν̄ with 10% accuracy. Key aspects of the detector configuration are described, with emphasis on tagging and timestamping the minority kaons in the high intensity, unseparated, charged-particle beam using KTAG, an upgraded version of a CEDAR differential Cherenkov detector. Data are presented showing that KTAG was successfully commissioned at CERN in November 2012.
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