19,898 research outputs found
Spectral features in galactic cosmic rays
Recent results by space borne experiments took cosmic ray data to a precision
level. These new results are able to challenge the conventional scenario for
cosmic ray acceleration and propagation in the Milky Way. In these
contributions, written for the XVII Vulcano Workshop, we will give an overview
of the latest results of the cosmic ray fluxes, and some possible
interpretations will be discussed. These measurements have a common feature,
namely the presence of unexpected and still not yet fully understood spectral
features.Comment: Proceedings of the XVII Vulcano Worksho
Dark Matter and SUSY: LEP results
The negative outcome of searches for supersymmetry performed at LEP have been
used to derive indirect constraints on the parameters of the most plausible
supersymmetric candidates for cold dark matter, in particular for the lightest
neutralino. We review the basic ideas leading to the present lower limit on the
lightest neutralino mass of about 37 GeV, with emphasis on the underlying
assumptions.Comment: 12 pages, 8 figures, to appear in the proceedings of Vulcano Workshop
2000: Frontier Objects In Astrophysics And Particle Physics, 22-27 May 2000,
Vulcano, Ital
IceCube Observatory: Neutrinos and the Origin of Cosmic Rays
The completed IceCube Observatory, the first km^3 neutrino telescope, is
already providing the most stringent limits on the flux of high energy cosmic
neutrinos from point-like and diffuse galactic and extra-galactic sources. The
non-detection of extra-terrestrial neutrinos has important consequences on the
origin of the cosmic rays. Here the current status of astrophysical neutrino
searches, and of the observation of a persistent cosmic ray anisotropy above
100 TeV, are reviewed.Comment: Proceedings for the XIV Vulcano Workshop, Vulcano (ME), Italy, May 28
- June 2, 2012; 6 pages, 6 figure
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