The decay ๐พ+ โ ๐+๐๐ฬ , with a very precisely predicted branching ratio of less than 10โ10, is one of the best candidates to reveal indirect effects of new physics at the highest mass scales. The NA62 experiment at CERN SPS is designed to measure the branching ratio of the ๐พ+ โ ๐+๐๐ฬ with a decay- in-flight technique, novel for this channel. NA62 took data in 2016, 2017 and another year run is scheduled in 2018. Statistics collected in 2016 allows NA62 to reach the Standard Model sensitivity for ๐พ+ โ ๐+๐๐ฬ , entering the domain of 10โ10 single event sensitivity and showing the proof of principle of the experiment. The preliminary result on ๐พ+ โ ๐+๐๐ฬ from the analysis of the 2016 data set is presented and prospects for future reviewed.
M. Pepe-Altarelli, G. Unal.......... Refreshments will be served at 10h30