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Magnetic diffusion effects on the Ultra-High Energy Cosmic Ray spectrum and composition
(Iop Publishing, 2013-09)
We discuss the effects of diffusion of high energy cosmic rays in turbulent extra-galactic magnetic fields. We find an approximate expression for the low energy suppression of the spectrum of the different mass components ...
Diffractive Production in Ultra-peripheral Collisions at High-Energy
(2017)
We show that diffractive production in ultra-peripheral high-energy collisions in small-x region provides a unique opportunity to discriminate among saturation and non-saturation models. We present various predictions for ...
Bounds on the density of sources of ultra-high energy cosmic rays from the Pierre Auger Observatory
(Institute of Physics - IOPBristol, 2013-05)
We derive lower bounds on the density of sources of ultra-high energy cosmic rays from the lack of significant clustering in the arrival directions of the highest energy events detected at the Pierre Auger Observatory. The ...
Anisotropy and chemical composition of ultra-high energy cosmic rays using arrival directions measured by the Pierre Auger Observatory
(Institute of Physics - IOPBristol, 2011-06)
The Pierre Auger Collaboration has reported evidence for anisotropy in the distribution of arrival directions of the cosmic rays with energies E > Eth = 5.5 × 1019 eV. These show a correlation with the distribution of ...
On the energy of the protons producing the very high-energy astrophysical neutrinos
(IOP Publishing, 2021-03)
We study the distribution of the energy of the protons that can produce an astrophysical neutrino with a given observed energy, in the TeV-PeV range, both through pp or pγ interactions. Due to the increasing multiplicity ...
Search for spatial correlations of Neutrinos with Ultra-high-energy Cosmic Rays
(Institute of Physics, 2023)
Bounds on direct couplings of superheavy metastable particles to the inflaton field from ultra high energy cosmic ray events
(World Scientific Publ Co Pte Ltd, 2002-10-30)
Top-down models for the origin of ultra high energy cosmic rays (UHECR's) propose that these events are the decay products of relic superheavy metastable particles, usually called X particles. These particles can be produced ...