Precise measurement of Br($K^+ \to π^+ ν\barν$) at CERN SPS

Venelin Kozhuharov, for the P326 Collaboration

Published 2005-11-14Version 1

An experimental proposal to measure Br($K^+ \to \pi^+ \nu \bar{\nu}$) has been submitted at the CERN SPSC. The goal is to collect ~80 $K^+\to \pi^+ \nu \bar{\nu}$ events with signal to background ratio of 10:1 in two years of data taking. This will allow determination of the CKM parameter $V_{td}$ with ~10% accuracy.