Background investigations for the observation of coherent neutrino nucleus scattering

Coherent Neutrino Nucleus Scattering (CNNS) is a neutral current process where a neutrino scatters off a target nucleus via the exchange of a virtual Z0 boson. For low transferred momenta the wave length of the Z0 is comparable to the diameter of the nucleus. Thus, the neutrino scatters coherently off all nucleons leading to an enhanced cross section. For the first observation of CNNS a strong neutrino source as well as a good background suppression is needed. The expected neutrino count rates for an experiment in the vicinity of a nuclear power reactor are presented. Also the results of several background simulations and an estimation of the observation potential for an experiment using low-temperature detectors is discussed.