English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In supersymmetric unified theories the dark matter particle can decay, justlike the proton, through grand unified interactions with a lifetime of order of10^{26} sec. Its decay products can be detected by several experiments --including Fermi, HESS, PAMELA, ATIC, and IceCube -- opening our first directwindow to physics at the TeV scale and simultaneously at the unification scale10^{16} GeV. We consider possibilities for explaining the electron/positronspectra observed by HESS, PAMELA, and ATIC, and the resulting predictions forthe gamma-ray, electron/positron, and neutrino spectra as will be measured, forexample, by Fermi and IceCube. The discovery of an isotropic, hard gamma rayspectral feature at Fermi would be strong evidence for dark matter and woulddisfavor astrophysical sources such as pulsars. Substructure in the cosmic rayspectra probes the spectroscopy of new TeV-mass particles. For example, apreponderance of electrons in the final state can result from the lightness ofselectrons relative to squarks. Decaying dark matter acts as a sparticleinjector with an energy reach potentially higher than the LHC. The resultingcosmic ray flux depends only on the values of the weak and unification scales.

Decaying Dark Matter as a Probe of Unification and TeV Spectroscopy