Searches for WIMP Dark Matter from the Sun with AMANDA
نویسنده
چکیده
A well-known potential dark matter signature is emission of GeV TeV neutrinos from annihilation of neutralinos gravitationally bound to massive objects. We present results from recent searches for high energy neutrino emission from the Sun with AMANDA, in all cases revealing no significant excess. We show limits on both neutralinoinduced muon flux from the Sun and neutralinonucleon cross section, comparing them with recent IceCube results. Particularly, our limits on spindependent cross section are much better than those obtained in direct detection experiments, allowing AMANDA and other neutrino telescopes to search a complementary portion of MSSM parameter space.
منابع مشابه
Searching For Dark Matter with Neutrino Telescopes
One of the most interesting mysteries of astrophysics is the puzzle of dark matter. Although numerous techniques have been explored and developed to detect this elusive substance, its nature remains unknown. One such method uses large high-energy neutrino telescopes to look for the annihilation products of dark matter annihilations. In this summary article, we briefly review this technique. We ...
متن کاملSearch for the Kaluza-Klein Dark Matter with the AMANDA/IceCube Detectors
A viable WIMP candidate, the lightest Kaluza-Klein particle (LKP), is motivated by theories of universal extra dimensions. LKPs can scatter off nuclei in large celestial bodies, like the Sun, and become trapped within their deep gravitational wells, leading to high WIMP densities in the object’s core. Pair-wise LKP annihilation could lead to a detectable high energy neutrino flux from the cente...
متن کاملLimits on WIMP Dark Matter
The current state searches for dark matter in the form of Weakly Interacting Massive Particles (WIMPs) using both direct and indirect techniques is reviewed. Advances in recent years by various direct search experiments, utilising technology able to record the nuclear recoil events expected from elastic scattering by WIMPs, have allowed progress towards lower limits to be made. In particular, t...
متن کاملA New WIMP Population in the Solar System and New Signals for Dark-Matter Detectors
We describe in detail how perturbations due to the planets can cause a subpopulation of WIMPs captured by scattering in surface layers of the Sun to evolve to have orbits that no longer intersect the Sun. We argue that such WIMPs, if their orbit has a semi-major axis less than 1/2 of Jupiter’s, can persist in the solar system for cosmological timescales. This leads to a new, previously unantici...
متن کاملExperimental Particle Dark Matter Search
After introducing several aspects of the motivation for particle dark matter search, experimental principles and the present state of the main experiments are presented. Direct searches for WIMPs are explained in some detail; indirect WIMP searches and axion searches are presented more briefly.
متن کامل