In the last fifteen years radio detection made it back to the list of promising techniques for
extensive air showers, firstly, due to the installation and successful operation of digital radio …

We consider here the possibility of quantum gravity induced violation of Lorentz symmetry
(LV). Even if suppressed by the inverse Planck mass such LV can be tested by current …

We discuss the prospects for next generation neutrino telescopes, such as IceCube, to
measure the flavor ratios of high-energy astrophysical neutrinos. The expected flavor ratios …

We present new limits on ultrahigh energy neutrino fluxes above 10 17 eV based on data
collected by the Radio Ice Cherenkov Experiment (RICE) at the South Pole from 1999–2005 …

We report on further SLAC measurements of the Askaryan effect: coherent radio emission
from charge asymmetry in electromagnetic cascades. We used synthetic rock salt as the …

We calculate the flux of “GZK photons,” namely, the flux of ultra-high-energy cosmic rays
(UHECRs) consisting of photons produced by extragalactic nucleons through the resonant …

As ultra-high energy cosmic ray protons propagate through the universe, they undergo
photo-meson interactions with the cosmic microwave background, generating the …

The RICE experiment seeks observation of ultra-high energy (UHE; E ν> 10 17 eV)
neutrinos interacting in Antarctic ice, by measurement of the radio frequency (RF) …

The Pierre Auger Observatory (PAO) has measured the spectrum and composition of the
ultrahigh energy cosmic rays with unprecedented precision. We use these measurements to …

The origin and nature of the highest energy cosmic ray events is currently the subject of
intense investigation by giant air shower arrays and fluorescent detectors. These particles …