Detection of low energy solar neutrinos with HPGermanium
L. Baudis - H.V. Klapdor-Kleingrothaus
Max-Planck-Institut für Kernphysik, P.O.Box 10 39 80, D-69029 Heidelberg, Germany
Received: 17 May 1999 Communicated by B. Povh
The potential of the GENIUS proposal  to measure the spectrum of low energy solar neutrinos in real time is studied. The detection reaction is elastic neutrino-electron scattering . The energy resolution for detecting the recoil electrons is about 0.3 %, the energy threshold is a few keV. The expected number of events for a target of one ton of natural germanium is 3.6 events/day for pp-neutrinos and 1.3 events/day for 7Be-neutrinos, calculated in the standard solar model (BP98 ). It should be feasible to achieve a background low enough to measure the low energy solar neutrino spectrum.