409 citations · 7.8k across the 177 of their papers we have counts for
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Correlation of the highest-energy cosmic rays with the positions of nearby active galactic nuclei
The Pierre Auger Collaboration
Data collected by the Pierre Auger Observatory provide evidence for anisotropy in the arrival directions of the cosmic rays with the highest energies, which are correlated with the…
Coherent radio pulses from showers in different media: A unified parameterization
Jaime Alvarez-Muñiz, Enrique Marqués, Ricardo A. Vázquez +1
We study the frequency and angular dependences of Cherenkov radio pulses originated by the excess of electrons in electromagnetic showers in different dense media. We develop a sim…
Neutrino Detection with Inclined Air Showers
Enrique Zas
The possibilities of detecting high energy neutrinos through inclined showers produced in the atmosphere are addressed with an emphasis on the detection of air showers by arrays of…
Depth Development of Extensive Air Showers from Muon Time Distributions
L. Cazon, R. A. Vazquez, E. Zas
We develop a potential algorithm to relate the depth development of ultra high energy extensive air showers and the time delay for individual muons. The time distributions sampled…
On the energy determination of extensive air showers through the fluorescence technique
J. Alvarez-Muñiz, E. Marqués, R. A. Vázquez +1
The determination of the shower development in air using fluorescence yield is subject to corrections due to the angular spread of the particles in the shower. This could introduce…
A new approach to inferring the mass composition of cosmic rays at energies above 10^18 eV
M. Ave, J. A. Hinton, R. A. Vazquez +2
We describe a new approach to establishing the mass composition at high energies. Based on measuring both the vertical and inclined shower rates, it has the potential to distinguis…
Constraints on the Ultra High Energy Photon flux using inclined showers from the Haverah Park array
M. Ave, J. A. Hinton, R. A. Vazquez +2
We describe a method to analyse inclined air showers produced by ultra high energy cosmic rays using an analytical description of the muon densities. We report the results obtained…
ZeV Air Showers: The View from Auger
Enrique Zas
In this article I briefly discuss the characteristics of the Auger observatories paying particular attention to the role of inclined showers, both in the search for high energy neu…
Astroparticle Physics: The High Energy Tail of the Cosmic Ray Spectrum
Enrique Zas
In this article I review the main theoretical problems that are posed by the highest energy end of the observed cosmic ray spectrum, stressing the importance of establishing their…
Calculations of radio pulses from High Energy Showers
Jaime Alvarez-Muñiz, Enrique Zas
In this article we review the progress made in understanding the main characteristics of coherent Čerenkov radiation induced by high energy showers in dense media. A specific code…
Prospects for radio detection of extremely high energy cosmic rays and neutrinos in the Moon
J. Alvarez-Muñiz, E. Zas
We explore the feasibility of using the Moon as a detector of extremely high energy (>10^19 eV) cosmic rays and neutrinos. The idea is to use the existing radiotelescopes on Earth…
Modelling Horizontal Air Showers Induced by Cosmic Rays
M. Ave, R. A. Vazquez, E. Zas
We present a framework for the study of muon density patterns on the ground due to showers produced in the atmosphere by cosmic rays incident at high zenith angles. As a checking p…
A New Approach to Mass Measurements of UHECR: Horizontal Air Showers
Enrique Zas
The role of Horizontal Showers induced by cosmic rays is discussed in detail. A new approach to the calculation of the muon component in horizontal air showers induced by protons,…
Summary: ZeV Air Showers. Where do we Stand?
Enrique Zas
Here an attempt is made at summarizing the presentations, most of which were about the highest energy particles observed in nature. Particular attention is paid to the solutions to…
New constraints from Haverah Park data on the photon and iron fluxes of UHE cosmic rays
M. Ave, J. A. Hinton, R. A. Vazquez +2
Using data from inclined events () recorded by the Haverah Park shower detector, we show that above 10^19 eV less than 30% of the primary cosmic rays can b…
Calculation Methods for Radio Pulses from High Energy Showers
J. Alvarez-Muñiz, R. A. Vázquez, E. Zas
We present an approximation for the numerical calculation of Cherenkov radio pulses in the Fraunhofer limit from very high energy showers in dense media. We compare it to full Mont…
The rate of cosmic ray showers at large zenith angles: a step towards the detection of ultra-high energy neutrinos by the Pierre Auger Observatory
M. Ave, J. A. Hinton, R. A. Vazquez +2
It is anticipated that the Pierre Auger Observatory can be used to detect cosmic neutrinos of >10^19 eV that arrive at very large zenith angles. However showers created by neutrino…
Radiodetection of neutrino interactions in ice
J. Alvarez-Muñiz, R. A. Vázquez, E. Zas
We study the Cherenkov radiopulses emitted in PeV and EeV neutrino interactions in ice. We discuss how the rich radiation pattern in the 100 MHz to 1 GHz frequency range, in princi…
EeV Hadronic Showers in Ice: The LPM effect
J. Alvarez-Muñiz, E. Zas
We study the longitudinal development of hadronic showers in water and ice for energies up to 100 EeV. We present results of a hybrid Monte Carlo method developed for the purpose o…
EeV Neutrinos
J. Alvarez-Muñiz, E. Zas
We discuss the recent developments in the study of alternative detection possibilites offered by the radio technique and air shower arrays.
High Energy Cosmic Rays from Neutrinos
J. J. Blanco-Pillado, R. A. Vázquez, E. Zas
We discuss recent models in which neutrinos, which are assumed to have mass in the eV range, originate the highest energy cosmic rays by interaction with the enhanced density in th…
Characterization of neutrino signals with radiopulses in dense media through the LPM effect
J. Alvarez-Muñiz, R. A. Vázquez, E. Zas
We discuss the possibilities of detecting radio pulses from high energy showers in ice, such as those produced by PeV and EeV neutrino interactions. It is shown that the rich radia…
The LPM effect for EeV hadronic showers in ice: implications for radio detection of neutrinos
J. Alvarez-Muñiz, E. Zas
We study the longitudinal development of hadronic showers in ice for energies up to 100 EeV and its implications for radio and optical Cherenkov emission. A small fraction of showe…
On the detection of Ultra High Energy Neutrinos with the Auger Observatory
K. S. Capelle, J. W. Cronin, G. Parente +1
We show that the Auger Air Shower Array has the potential to detect neutrinos of energies in the eV range through horizontal air showers. Assuming some simple conservativ…