Prospects for $K^+ \to \pi^+ \nu \bar{ \nu }$ at CERN in NA62
  The NA62 experiment will begin taking data in 2015. Its primary purpose is a 10% measurement of the branching ratio of the ultrarare kaon decay $K^+ \to \pi^+ \nu \bar{ \nu }$, using the decay in flight of kaons in an unseparated beam with momentum 75 GeV/c.The detector and analysis technique are described here. 
G. Aglieri Rinella, R. Aliberti, F. Ambrosino, B. Angelucci, A.   Antonelli, G. Anzivino, R. Arcidiacono, I. Azhinenko, S. B...
hep-ex