Cosmic ray signatures of massive relic particles

Details Cosmic ray signatures of massive relic particles Cosmic ray signatures of massive relic particles

2000-05-25

arxiv.org/abs/hep-ph/0005256v1

In `COSMO-99, Third Intern. Workshop on Particle Physics and the Early Universe' pages 77-91

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX (sprocl.sty); 14 pages (7 figs); Plenary talk at COSMO-99, Trieste, 27 Sep-3 Oct 1999

Scientific paper

The possibility that the Fermi scale is the only fundamental energy scale of Nature is under serious consideration at present, yet cosmic rays may already have provided direct evidence of new physics at a much higher scale. The recent detection of very high energy particles with no plausible astrophysical sources suggests that these originate from the slow decays of massive particles clustered in the halo of our Galaxy. Such particles had in fact been predicted to exist beforehand with mass and lifetime in the range required to explain the observations. I discuss recent work focussing on experimental tests of this speculative but exciting idea.

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