Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2003-07-07
Physics
High Energy Physics
High Energy Physics - Phenomenology
Presented by S. Kovesi-Domokos at the Jophns Hopkins Workshop, "High Eenergy Reactions", Heidelberg 2002
Scientific paper
Ultra high energy cosmic rays (UHECR) pose a problem either for particle physics or for astrophysics (or for both) by the unexpectedly high number of cosmic ray showers observed with energy above about 5x10^{19}eV, the Greisen-Zatsepin-Kuzmin (GZK) cutoff. Our emphasis is on those possible solutions of the puzzle which assume that ultra high energy neutrinos travel cosmic distances. We present, in detail, a model which is based on a low energy (50 to 100 TeV) transition to a higher than four dimensional string regime. Neutrino-quark cross sections grow exponentially close to the threshold of this new scale because of the fast increase of the density of string states and effectively acquire hadronic strength.
Domokos Gabor
Kovesi-Domokos Susan
No associations
LandOfFree
What Can we learn from Cosmic Rays? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with What Can we learn from Cosmic Rays?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and What Can we learn from Cosmic Rays? will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-571772