1. NA62 Collaboration Meeting in Siena (28-31 August, 2012) M.Lenti

2. History… 67 Participants 4 accompayning persons 1 invited speaker (A.Masiero)

3. Thanks Physics Department of the University of Siena Servizio Congressi Universita’ di Siena INFN Sezione di Firenze

4. People to thanks Roberta Corsi Giuliana Pasquini Elisa Pratali Farida Pizzuto Linda Morgese Daniela Bellucci Andrea Vetere Livia Gabricci Marco Grilli All the coffee-break and lunch staff service

5. May be you don’t know… Siena is an historical and rich of art city… In 1915 in Siena Oreste Piccioni was born With Conversi and Pacini demonstrated in 1945 or so the weakly interaction behaviour of the muon In 1955 with Pais published the famous paper on KS-KL regeneration In 1960 his group made the first KS-KL mass difference measurement

6. Many thanks to all of you!