Status and Perspectives of Indirect Search for Dark Matter.pdf

Status and Perspectives of Indirect Search for Dark Matter Olga Suvorova 9 9 Institute for Nuclear Research, Russian Academy of Sciences, 9 60th October Anniversary Av. 7a, Moscow, 117312, Russia 1 v o Abstract. I summarize here and discuss the results of presently N operating neutrino telescopes in searching for a singnal of dark matter weakly interacting massive particles (WIMPs). 9 1 1 v 5 1. Introduction 1 4 The status of dark matter problem is quite complicated (for a review see 1 1 ref.[1, 2]) but clear displays the close connection of the fundamental char- 9 acters of the early Universe with the interaction properties of elementary 9 particles. Existing evidence of a cosmologically significant amount of dark / matter being able to explaine as much as 99% of the mass of the Universe h p together with Big Bang Nucleosynthesis and formation of large structures - in the Universe supports hypothesis of the non-baryonic and mainly cold p e (75%) dark matter bulk. h In a Minimal Supersymmetric Standard Model (MSSM) with R-parity : conservation the lightest of the four neutralinos assumed to be stable v i against decay and annihilating at weak scale [3]. Thanks to that neutralino X provides a relic density close to the critical one. r a The opportunity for indirect signature as well as for direct detection of WIMPs is coming from a drastical assumtion that WIMPs elastically in- teract (via mass and spin) with ordinary baryonic matter [3, 4]. Since neu- tralinos are a mixture of the respective partners of the electrically