E. Zas

New constraints from haverah park data on the photon and iron fluxes of ultrahigh-energy cosmic rays

Using data from inclined events ( 60 degrees <straight theta<80 degrees ) recorded by the Haverah Park shower detector, we show that above 10(19) eV less than 41% ( 54%) of the primary cosmic rays can be photons (iron nuclei) at the 95% confidence level. Above 4x10(19) eV less than 65% of the cosmic rays can be photonic at the same confidence level. These limits place important constraints on some models of the origin of ultrahigh-energy cosmic rays. Details of two new events above 10(20) eV are reported.

On the detection of ultra high energy neutrinos with the Auger observatory

Abstract We show that the Auger Air Shower Array has the potential to detect neutrinos of energies in the 1019 eV range through horizontal air showers. Assuming some simple conservative trigger requirements, we obtain the acceptance for horizontal air showers as induced by high energy neutrinos by two alternative methods and we then give the expected event rates for a variety of neutrino fluxes as predicted in different models which are used for reference.

Constraints on the ultrahigh-energy photon flux using inclined showers from the Haverah Park array

We describe a method to analyze inclined air showers produced by ultrahigh-energy cosmic rays using an analytical description of the muon densities. We report the results obtained using data from inclined events

High-energy neutrino astronomy: Horizontal air shower arrays versus underground detectors

(60\ifmmode^\circ\else\textdegree\fi{}l\ensuremath{\theta}l80\ifmmode^\circ\else\textdegree\fi{})

Modeling horizontal air showers induced by cosmic rays

recorded by the Haverah Park shower detector for energies above

Calculation methods for radio pulses from high energy showers

{10}^{19} \mathrm{eV}.

Ultratransparent Antarctic ice as a supernova detector

Using mass independent knowledge of the UHECR spectrum obtained from vertical air shower measurements and comparing the expected horizontal shower rate to the reported measurements we show that above

Time structure of muonic showers

{10}^{19} \mathrm{eV}

Characterization of neutrino signals with radiopulses in dense media through the Landau-Pomeranchuk-Migdal effect

less than

Coherent radio pulses from showers in different media: A unified parametrization

48%