Title: Survey of the Sun in the Lake Baikal Neutrino Experiment Authors: Zh.-A.Dzhilkibaev, et al., for the Baikal Collaboration
Upward through-going muons in the Lake Baikal Neutrino Experiment arriving from the ecliptic plane have been analysed using NT200 data samples of the years 1998-2002 (1007 live days). We derive upper limits on muon fluxes from annihilation processes of hypothetical WIMP dark matter particles in the center of the Sun.
Title: The BAIKAL neutrino experiment - physics results and perspectives Authors: R. Wischnewski, for the Baikal Collaboration
We review the status of the Lake Baikal Neutrino Experiment. The Neutrino Telescope NT200 has been operating since 1998 and has been upgraded to the 10 Mton detector NT200+ in 2005. We present selected astroparticle physics results from long-term operation of NT200. Also discussed are activities towards acoustic detection of UHE-energy neutrinos, and results of associated science activities. Preparation towards a km³-scale (Gigaton volume) detector in Lake Baikal is currently a central activity. As an important milestone, a km3-prototype string, based on completely new technology, has been installed and is operating together with NT200+ since April, 2008.