## The influence of Lorentz violation on UHE photon detection    [PDF]

Grigory Rubtsov, Petr Satunin, Sergey Sibiryakov
We show that violation of the Lorentz symmetry in quantum electrodynamics can suppress the rates of the interactions crucial for the formation of photon-induced air showers, such as pair production on nuclei and in the geomagnetic field. As a consequence, the allowed region in the space of Lorentz-violating parameters will be seriously restricted if several photons with energies \$\gtrsim\,10^{19}\, {eV}\$ are detected.
View original: http://arxiv.org/abs/1307.8027