Author/Authors :
Berg، نويسنده , , M. and Carlén، نويسنده , , L. and Elmér، نويسنده , , Ingalill R. and Jakobsson، نويسنده , , B. and Norén، نويسنده , , B. and Oskarsson، نويسنده , , Rajaa A. and Ericsson، نويسنده , , G. and Julien، نويسنده , , J. and Nybّ، نويسنده , , K. and Thorsteinsen، نويسنده , , T.-F. and Bellini، نويسنده , , V. and Guttormsen، نويسنده , , M. and Lّvhّiden، نويسنده , , G.، نويسنده ,
Abstract :
We present range telescopes for measurements of low energy K+ mesons together with first in-beam results. The hardware trigger, based on the observation of the μ+ from the K+ → μ+ + νμ decay channel, is designed for subthreshold hadron-nucleus and heavy ion reactions, where the kaon fraction of the total number of charged particles is ⪡ 10−4. The geometrical efficiency is ∼15% and the total efficiency ∼4% for K+ registration in the present version of the detector.
