Latest results from precision measurements at the NA62 experiment

Le résumé fourni par la source

Then NA62 experiment at CERN collected the world's largest dataset of charged Kaons, the main goal being the measurement of the $\mathcal{B}(K^+ \rightarrow \pi^+ \nu \bar{\nu})$. New results from the analyses of rare kaon and pion decays using data samples collected in 2017-2018 are presented. A sample of $\pi^0 \rightarrow e^+ e^-$ decays was collected and preliminary results of the branching ratio are reported. Also, a sample of $K^+ \rightarrow \pi^+ \gamma \gamma$ decays was collected and measurement of the branching ratio, study of the di-photon mass spectrum, and the first search for production and prompt decay of an axion-like particle with gluon coupling in the process $K^+ \rightarrow \pi^+ A, A \rightarrow \gamma \gamma$ are reported.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.