High energy neutrinos from superheavy dark matter annihilation - art. no. 083504

Superheavy (M> 10(10)) GeV) particles produced during inflation may be the dark matter. independent of their interaction strength. Strongly interactin g superheavy particles will be captured by the Sun. and their annihilation in the center of the Sun will produce a flux of energetic neutrinos that sh ould be detectable by neutrino telescopes, Depending on the particle mass, event rates in a cubic-kilometer detector range from several per hour to se veral per year. The signature of the process is a predominance of tau neutr inos. with a relatively flat energy spectrum of events ranging from 50 GeV to many TeV, and with the mean energy of detected tau neutrinos about 3 TeV .