by
Prof. J.J. GOMEZ-CADENAS (Univ. Geneva, Univ. Valencia)
→
Europe/Zurich
CERN
CERN
Description
The K2K experiment has currently a 2.8 sigma evidence of the existence of oscillations. During the next two years the total amount of data will be doubled, resulting in a statistics error of less than 5%. The dominant systematic errors are the energy scale and the extrapolation error, both at the 5% level. To reduce the systematic error below to a level comparable with the statistical, the extrapolation error must be reduced by a factor 3 to 5. This is possible thanks to the detailed measurement, done by the Harp experiment of the K2K target. The influence of the measurement and the prospects of both experiments will be discussed.