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

Goudzovski, Evgueni, Krivda, Marian, Lazzeroni, Cristina, Massri, Karim, Newson, Francis O, Pyatt, Simon, Romano, Angela, Serghi, Xen, Sergi, Antonino, Staley, Richard J
et al (show 12 more authors) (2015) Development of the kaon tagging system for the NA62 experiment at CERN. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 801. pp. 86-94.

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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.

Item Type: Article
Uncontrolled Keywords: Cherenkov detectors, Fast timing, Photomultipliers
Depositing User: Symplectic Admin
Date Deposited: 18 Oct 2018 09:38
Last Modified: 19 Jan 2023 01:14
DOI: 10.1016/j.nima.2015.08.015
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