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Article
Energy spectrum and elemental composition of cosmic rays in the PeV region
KASCADE (KArlsruhe Shower Core and Array DEtector) is determining flux spectra for different primary mass groups to disentangle the knee feature of the primary cosmic-ray energy spectrum. The energy spectra of...
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Article
Reconstruction of energy spectra of elemental groups with KASCADE: Sensitivity to hadronic interaction models
The electron and muon number of extensive air showers (EAS) measured at ground level are the main observables of the detector array of the KASCADE experiment. The two-dimensional frequency distribution of thes...
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Article
Tests of hadronic interaction models by data of the KASCADE-Grande air-shower experiment
KASCADE-Grande is a multi-detector setup to get redundant information on single air shower basis. The information is used to perform multi-parameter analyses to solve the threefold problem of the reconstructio...
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Article
Open AccessSearch for patterns by combining cosmic-ray energy and arrival directions at the Pierre Auger Observatory
Energy-dependent patterns in the arrival directions of cosmic rays are searched for using data of the Pierre Auger Observatory. We investigate local regions around the highest-energy cosmic rays with ...
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Article
Open AccessThe KASCADE Cosmic-ray Data Centre KCDC: granting open access to astroparticle physics research data
The ‘KASCADE Cosmic ray Data Centre’ is a web portal (https://kcdc.ikp.kit.edu), where the data of the astroparticle physics experiment KASCADE-Grande are ma...
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Article
Open AccessDirect measurement of the muonic content of extensive air showers between \(\mathbf { 2\times 10^{17}}\) and \(\mathbf {2\times 10^{18}}~\)eV at the Pierre Auger Observatory
The hybrid design of the Pierre Auger Observatory allows for the measurement of the properties of extensive air showers initiated by ultra-high energy cosmic rays with unprecedented precision. By using an arra...
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Article
Open AccessVelocity independent constraints on spin-dependent DM-nucleon interactions from IceCube and PICO
Adopting the Standard Halo Model (SHM) of an isotropic Maxwellian velocity distribution for dark matter (DM) particles in the Galaxy, the most stringent current constraints on their spin-dependent scattering c...
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Article
Open AccessFinal results of the LOPES radio interferometer for cosmic-ray air showers
LOPES, the LOFAR prototype station, was an antenna array for cosmic-ray air showers operating from 2003 to 2013 within the KASCADE-Grande experiment. Meanwhile, the analysis is finished and the data of air-sho...
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Article
Open AccessThe energy spectrum of cosmic rays beyond the turn-down around \(\varvec{10^{17}}\) eV as measured with the surface detector of the Pierre Auger Observatory
We present a measurement of the cosmic-ray spectrum above 100 PeV using the part of the surface detector of the Pierre Auger Observatory that has a spacing of 750 m. An inflection of the spectrum is observed, ...
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Article
Open AccessLow energy event reconstruction in IceCube DeepCore
The reconstruction of event-level information, such as the direction or energy of a neutrino interacting in IceCube DeepCore, is a crucial ingredient to many physics analyses. Algorithms to extract this high l...
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Article
Open AccessDetection of astrophysical tau neutrino candidates in IceCube
High-energy tau neutrinos are rarely produced in atmospheric cosmic-ray showers or at cosmic particle accelerators, but are expected to emerge during neutrino propagation over cosmic distances due to flavor mi...
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Article
Open AccessObservation of seasonal variations of the flux of high-energy atmospheric neutrinos with IceCube
Atmospheric muon neutrinos are produced by meson decays in cosmic-ray-induced air showers. The flux depends on meteorological quantities such as the air temperature, which affects the density of air. Competiti...
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Article
Open AccessDevelopments and results in the context of the JEM-EUSO program obtained with the ESAF simulation and analysis framework
JEM-EUSO is an international program for the development of space-based Ultra-High Energy Cosmic Ray observatories. The program consists of a series of missions which are either under development or in the dat...