Results from the NA62 2014 Commissioning Run

Abstract

The main purpose of the NA62 experiment is to measure the branching ratio of the (ultra) rare decay $K+\to \pi +\nu \bar{\nu }$ with the precision of 10% collecting about 100 events with the Standard Model branching fraction in 3 years of data taking. The commissioning of the experiment after the 2014 pilot run and the prospects for the 2015 run are presented.