Lorentz Violation and Ultrahigh-Energy Photons

Details Lorentz Violation and Ultrahigh-Energy Photons Lorentz Violation and Ultrahigh-Energy Photons

2008-07-08

arxiv.org/abs/0807.1210v2

Phys.Rev.D78:063003,2008

Astronomy and Astrophysics

Astrophysics

9 revtex pages, 11 figures; published version; added comment on models beyond effective field theory

Scientific paper

10.1103/PhysRevD.78.063003

The propagation of photons, electrons and positrons at ultra-high energies above 10^{19} eV can be changed considerably if the dispersion relations of these particles are modified by terms suppressed by powers of the Planck scale. We recently pointed out that the current non-observation of photons in the ultra-high energy cosmic ray flux at such energies can put strong constraints on such modified dispersion relations. In the present work we generalize these constraints to all three Lorentz invariance breaking parameters that can occur in the dispersion relations for photons, electrons and positrons at first and second order suppression with the Planck scale. We also show how the excluded regions in these three-dimensional parameter ranges would be extended if ultra-high energy photons were detected in the future.

Affiliated with

Also associated with

No associations

Rating

Lorentz Violation and Ultrahigh-Energy Photons 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 Lorentz Violation and Ultrahigh-Energy Photons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lorentz Violation and Ultrahigh-Energy Photons will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-268633