Speaker
Description
The NA62 experiment at CERN reports new results from the analyses of rare kaon and pion decays, using data samples collected in 2017-2018. A sample of $K^+ \rightarrow \pi^+ \gamma \gamma$ decays was collected using a minimum-bias trigger, and the results include 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 $K^+ \rightarrow \pi^+ A$, $A \rightarrow \gamma \gamma$. A sample of $\pi^0 \rightarrow e^+ e^-$ decay candidates was collected using a dedicated scaled down di-electron trigger, and a preliminary result of the branching fraction measurement is presented. New searches for lepton flavour violating kaon decays, and for production of a weakly-coupled particle X in the $K^+ \rightarrow \mu^+ \nu X$, $X \rightarrow \gamma \gamma$ decay chain, are also presented.
| Alternate track | 03. Beyond the Standard Model |
|---|---|
| I read the instructions above | Yes |
