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T: Teilchenphysik

T 307: Kosmische Strahlung VIII

T 307.6: Vortrag

Dienstag, 28. März 2006, 17:55–18:10, HG2-HS1

New Results and Future of the BAIKAL Neutrino Detector — •Ralf Wischnewski and Christian Spiering — DESY, Platanenallee 6, 15738 Zeuthen

We present the status of the Baikal Neutrino Experiment, the only High Energy Neutrino Telescope currently operating in the Northern hemisphere. On April 9th, 2005, the 10 Mton scale detector NT200+ was put into operation in Lake Baikal. We describe design and physics potential of this detector. Selected results obtained during 1998-2002 with the neutrino telescope NT200 are presented. The upper limit obtained for a diffuse (ν_e+ν_µ+ν_τ) flux with E⁻² shape is E² Φ = 8.1 × 10⁻⁷cm⁻²s⁻¹sr⁻¹GeV. The three-year sensitivity of NT200+ to the all-flavor neutrino flux is 2×10⁻⁷cm⁻²s⁻¹sr⁻¹GeV for E>10² TeV, identical to the preliminary limit from four years of Amanda data. The limits obtained for fast magnetic monopoles and an astrophysical ν_e flux at 6.3 PeV (W-resonance energy) are presently the most stringent ones.