2005/07/29 by Wischnewski, R.
#Astrophysics (astro-ph) #FOS: Physical sciences
paper · doi:10.48550/arxiv.astro-ph/0507712
We present the results of a search for high energy extraterrestrial neutrinos with the Baikal underwater Cherenkov detector NT200, based on data taken in 1998 - 2002 (1038 live days).Upper limits on the diffuse fluxes of νe+νμ+ντ, predicted by several models of AGN-like neutrino sources, are derived. For an E-2 behavior of the neutrino spectrum, our limit is E2 Φν(E)<8.1 10-7 cm-2 s-1 sr-1 GeV over a neutrino energy range 2 104 - 5 107 GeV covering 90% of expected events. The upper limit on the resonant νe diffuse flux is Φνe < 3.3 10-20 cm-2s-1sr-1GeV-1.