KARMEN - NEUTRINO PHYSICS AT ISIS

The KARMEN experiment at the pulsed spallation neutron facility ISIS is investigating neutrino properties and interactions by measuring neutrino-induced charged current C-12(nu(e)e(-))N-12 and, for the first time, neutral current C-12 ( nu,nu(1)) C-12* excitations of nuclei. Neutrino -nucleus interactions in the energy range up to 50 MeV are detected by a 56 ton high resolution liquid scintillation calorimeter with spectroscopic quality. Efficient background rejection results in clear neutrino signatures and allows reliable cross section measurements down to 10(-42) Cm-2. After its first three years of data taking the experiment has identified and analysed more than 1000 neutrino-nucleus interactions. We present cross section results for neutrino-induced nuclear reactions with special emphasis on their implications for neutrino astrophysics, weak nuclear form factors and mu -e universality of neutral currents.