PAMELA satellite data as a signal of non-thermal wino LSP dark matter

摘要: Abstract Satellite and astrophysical data is accumulating that suggests constrains interpretations of the dark matter universe. We argue there a very well motivated theoretical framework (which existed before data) consistent with interpretation annihilation being observed by PAMELA satellite detector. The (mainly) neutral W boson superpartner, wino. Using program GALPROP extensively we study products backgrounds together. A wino mass approximately in 180–200 GeV range gives good description data, antimatter gammas from annihilating winos dominating below this energy but not contributing above it. explain why does imply no antiproton signal was or earlier experiments, analysis misunderstood papers. Wino describe Fermi e + − (except partially ∼100 GeV). At higher energies expect mechanisms to contribute, simply parameterize them without particular physical interpretation, check combination can all data. emphasize several predictions for test particularly flattening turndown positron spectra 100 GeV. It should be emphasised most other require large rise rates focus on studying well-motivated long predicted rather than comparisons interpretations. also depend strongly assumptions about cosmological history universe, broader underlying theory context, propagation antiprotons positrons galaxy. observing arose moduli decay non-thermal sources universe cooled thermal equilibrium after big bang. Then it appropriate normalize density local relic density, “boost factors” are needed obtain reported rates.