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ATLAS and ultra high energy cosmic ray physics
After a brief introduction to extended air shower cosmic ray physics the current and future deployment of forward detectors at ATLAS is discussed along with the various aspects of the current and future ATLAS programs to explore hadronic physics.
Pinfold James
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Search for the large-scale cosmic-ray anisotropies using the TA and TALE surface detector arrays [PDF]
Origins of ultra-high-energy cosmic rays (UHECRs) are still largely unknown. In particular, the “2nd knee” around 1017 eV could be related to a transition of origins from the galactic to extra-galactic sources.
Kimura Yusuke +3 more
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Search for ultra high energy cosmic ray sources
Earlier we suggested a new method to search for sources and anisotropy of the arrival directions of ultra high energy particles. Here using this method we analyzed the data of the Yakutsk EAS array and found that particle fluxes with energies E < 4.1019 ...
Mikhailov A.A., Kolosov V.A.
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Constraints on the Hosts of UHECR Accelerators
Interactions of ultra-high-energy cosmic rays (UHECRs) in the surroundings of their accelerators can naturally explain the observed spectrum and composition of UHECRs, including the abundance of protons below the ankle.
Marco Stein Muzio, Glennys R. Farrar
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Ultra high energy cosmic rays [PDF]
The current status of Ultra High Energy Cosmic Rays (UHECR) is reviewed, with emphasis given to theoretical interpretation of the observed events. The galactic and extragalactic origin, in case of astrophysical sources of UHE particles, have the problems either with acceleration to the observed energies or with the fluxes and spectra.
openaire +4 more sources
We present an update on CRDB, the cosmic-ray database for charged species. CRDB is based on MySQL, queried and sorted by jquery and table-sorter libraries, and displayed via PHP web pages through the AJAX protocol. We review the modifications made on the
David Maurin +4 more
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Effects of the Galactic Magnetic Field on the UHECR Correlation Studies with Starburst Galaxies
We estimate the biases caused by the coherent deflection of cosmic rays due to the Galactic magnetic field (GMF) in maximum likelihood analyses for searches of ultrahigh-energy cosmic-ray sources in the literature. We simulate mock event data sets with a
Ryo Higuchi +4 more
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Simulation of the Isotropic Ultra-High Energy Photon Flux in the Solar Magnetic Field
Both the lack of observation of ultra-high energy (UHE) photons and the limitations of the state-of-the-art methodology being applied for their identification motivate studies on alternative approaches to the relevant simulations and the related ...
Bożena Poncyljusz +19 more
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Ultra high energy cosmic ray neutrinos
Abstract Neutrinos, produced by the collisions of ultra high energy cosmic rays and the 3 K background radiation, require careful treatment of the evolving cosmic ray spectrum. The resulting neutrino differential energy spectrum is flat up to energies of order 10 19 eV, thus most events are expected at this energy.
Christopher T. HILL, David N. SCHRAMM
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Detection of ultra-high energy cosmic ray air showers by Cosmic Ray Air Fluorescence Fresnel lens Telescope for next generation [PDF]
In the future, ultra-high energy cosmic ray (UHECR) observatory will be expanded due to the small flux. Then, cost reduction is useful strategy to realize a huge scale observatory.
Tameda Yuichiro +7 more
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