Recent results from the NA62 experiment

The NA62 experiment at the CERN SPS, designed to measure the branching ratio of the ultra-rare K+ → π+vv¯ decay using a decay-in-flight technique, collected data from 2016 to 2018. The analysis of the full 2018 data set is presented here, corresponding to a total number of kaon decays of about 2.62 × 1012, the largest data set so far collected. The combination with the 2016-2017 data set is also reported. In addition the latest results from other searches are briefly presented

Searches for heavy neutral lepton production and lepton flavour violation in kaon decays at the NA62 experiment

Search for heavy neutral lepton (HNL) production and lepton flavor and number violation (LFV/LNV) in charged kaon decays using the data collected by Kaon experiment NA62 at CERN are reported. Upper limits are established on the elements of the extended neutrino mixing matrix for heavy neutral lepton mass in the range 130-450 MeV, improving on the results from previous HNL production search. The progress and prospects in different LNV/LFV analysis on data sets from 2015-2018 are reviewed

NA62 results on Dark Sector searches

NA62 is a precision physics experiment studying charged kaons and their decayproducts with an unprecedented accuracy (measurement of the K + → π + ννbranching ratio of the order of 10 −11), allowing indirect probes of new physicsscales up to O(100) TeV. NA62 experiment also searches directly for weaklyinteracting particles of up to O(100) MeV masses in kaon decays and up to O(1)GeV masses when running in the beam dump mode. For both modes of directsearches, NA62 has been collecting data since 2021 after a successful 2016-18run 1. Past results and future prospects are presented in this talk