Issue
EPL
Volume 81, Number 4, February 2008
Article Number 40003
Number of page(s) 5
Section General
DOI http://dx.doi.org/10.1209/0295-5075/81/40003
Published online 21 January 2008
EPL, 81 (2008) 40003
DOI: 10.1209/0295-5075/81/40003

TeV-photon paradox and space with SU(2) fuzziness

A. Shariati, M. Khorrami and A. H. Fatollahi

Department of Physics, Alzahra University - Tehran 1993891167, Iran

shariati@mailaps.org
mamwad@mailaps.org
ahfatol@gmail.com

received 8 October 2007; accepted in final form 15 December 2007; published February 2008
published online 21 January 2008

Abstract
The possibility is examined that a model based on space noncommutativity of linear type can explain why photons from distant sources with multi-TeV energies can reach the Earth. In particular within a model in which space coordinates satisfy the algebra of the SU(2) Lie group, it is shown that there is a possibility that the pair production through the reaction of CMB and energetic photons be forbidden kinematically.

PACS
02.40.Gh - Noncommutative geometry.

© EPLA 2008