Astrophysics and Astronomy

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What About Dark Matter?

~85% of the matter in the Universe is Dark Matter

At most a few % of the matter is baryons

Most people believe that the lightest SUSY particle is a stable neutralino and is probably the dark matter

These are weakly interacting and heavy

Evidence of clustering

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Wimp Capture

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Wimp Detection

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Neutrino Astronomy Explores Extra Dimensions

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Cosmic Neutrino Factory

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W-B Bound

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Evading the Bound “Neutrino only” sources that are optically thick to proton photo-meson interactions and from which protons cannot escape.

No observational evidence (from baryons or high energy photons)

Cores of AGNs (rather than in the jets) by photo-meson interactions or via p−p collisions in a collapsing galactic nucleus or in a cacooned black hole.

The most optimistic predictions of the AGN core model have already been ruled out by AMANDA

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Mannheim, Protheore and Rachen Model

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Neutrinos from Cosmic Rays

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Size Perspective for KM3

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Detection Technique

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Detection of ne ,nm , nt O(km) long muon tracks

Electromagnetic and hadronic cascades

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Muon Events Measure energy by counting the number of fired PMT.

(This is a very simple but robust method)

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Determining Energy

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Double Bang Regeneration makes Earth quasi

transparent for high energie nt;

(Halzen, Salzberg 1998, …)

Also enhanced muon flux due to