Development of the kaon tagging system for the NA62 experiment at CERN

Research output: Contribution to journalArticle

Authors

  • Francis O. Newson
  • Simon Pyatt
  • Xen Serghi
  • Antonino Sergi
  • Richard J. Staley
  • Helen F. Heath
  • Ryan F. Page
  • Antonio Cassese
  • Peter Cooke
  • John B. Dainton
  • John R. Fry
  • Liam D. J. Fulton
  • Emlyn Jones
  • Tim J. Jones
  • Kevin J. McCormick
  • Peter Sutcliffe
  • Bozydar Wrona

Colleges, School and Institutes

Abstract

The NA62 experiment at CERN aims to make a precision measurement of the ultra-rare decay $K^{+} \rightarrow \pi^{+}\nu\overline{\nu}$, and relies on a differential Cherenkov detector (KTAG) to identify charged kaons at an average rate of 50 MHz in a 750 MHz unseparated hadron beam. The experimental sensitivity of NA62 to K-decay branching ratios (BR) of $10^{-11}$ requires a time resolution for the KTAG of better than 100 ps, an efficiency better than 95% and a contamination of the kaon sample that is smaller than $10^{-4}$. A prototype version of the detector was tested in 2012, during the first NA62 technical run, in which the required resolution of 100 ps was achieved and the necessary functionality of the light collection system and electronics was demonstrated.

Details

Original languageEnglish
Pages (from-to)86-94
JournalNuclear Inst. and Methods in Physics Research, A
Volume801
Early online date15 Aug 2015
Publication statusPublished - 21 Nov 2015

Keywords

  • Cherenkov detectors, Fast timing, Photomultipliers