Dortmund 2006 – wissenschaftliches Programm
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T: Teilchenphysik
T 409: Neutrinos III
T 409.8: Vortrag
Mittwoch, 29. März 2006, 18:05–18:20, HG2-HS7
New Results from the Counting Test Facility CTF at the Gran Sasso Underground Laboratory — •Davide D Angelo, Franz von Feilitzsch, Lothar Oberauer, and Marianne Goeger-Neff — Technische Universität München, Physik-Dpt. E15
With the CTF a new limit on the flux of electron antineutrinos from the Sun has been obtained in the energy range 1.8 MeV < Eν< 8 MeV. Only one event was observed during an exposure time of ∼ 7 ty. In this talk the background as well as several contributions to the signal are discussed and the corresponding upper limit for solar neutrino conversion into antineutrinos is shown. In addition the cosmogenic 11C production has been measured. With these data the feasibility for CNO- and pep-neutrino detection in the forthcoming Borexino is discussed.