'TeV Gammaray Crisis' and an Anisotropic Space Model
Abstract
To solve the `TeV gamma crisis', we examine a model whose one spatial direction is discretized at a high energy scale. Assuming the standard extragalactic IR photon distribution, we evaluate the mean freepath of a energetic photon which acquires an effective mass in the model. For a wide range of the value of the lattice energy scale between a few TeV and around $10^{10}$ GeV, the mean freepath of a TeV energy photon can be enlarged enough to solve the `crisis'. Taking into account the effects of the universe expansion, we find bounds of the lattice constant.
 Publication:

arXiv eprints
 Pub Date:
 April 2004
 arXiv:
 arXiv:astroph/0404595
 Bibcode:
 2004astro.ph..4595C
 Keywords:

 Astrophysics;
 High Energy Physics  Phenomenology
 EPrint:
 16 pages, 4 figures