PoS - Proceedings of Science
Volume 390 - 40th International Conference on High Energy physics (ICHEP2020) - Parallel: Quark and Lepton Flavour Physics
New result on the search for the $K^+ \to \pi^+ \nu\bar\nu$ decay at the NA62 experiment at CERN
R. Marchevski* on behalf of the NA62 Collaboration
*corresponding author
Full text: pdf
Pre-published on: January 13, 2021
Published on:
Abstract
The ultra-rare $K^{+} \rightarrow \pi^{+}\nu\overline{\nu}$
decay benefits from a precisely predicted branching ratio in the SM
$BR(K^{+} \rightarrow \pi^{+}\nu\overline{\nu}) = (8.4\pm 1.0)\times
10^{-11}$, being almost free from theoretical uncertainties, and
most importantly from a very high sensitivity to a variety of
beyond-the-standard-model scenarios, making it one of the best
candidates to reveal indirect effects of new physics in the flavour
sector. The NA62 experiment at the CERN SPS, designed to measure
the branching ratio of $K^{+} \rightarrow \pi^{+}\nu\overline{\nu}$
with a decay-in-flight technique, collected data in 2016-2018. New
results from the analysis of 2018 data, the largest data set so far
collected, will be presented. The result will represent the most
accurate measurement so far achieved of this ultra-rare decay.
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.