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20022009
most citedObservation of an anomalous positron abundance in the cosmic radiation

2.2k citations

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astro-ph20082.2k cited

Observation of an anomalous positron abundance in the cosmic radiation

O. Adriani, G. C. Barbarino, G. A. Bazilevskaya +48

Positrons are known to be produced in interactions between cosmic-ray nuclei and interstellar matter ("secondary production"). Positrons may, however, also be created by dark matte…

astro-ph2008550 cited

A new measurement of the antiproton-to-proton flux ratio up to 100 GeV in the cosmic radiation

O. Adriani, G. C. Barbarino, G. A. Bazilevskaya +50

A new measurement of the cosmic ray antiproton-to-proton flux ratio between 1 and 100 GeV is presented. The results were obtained with the PAMELA experiment, which was launched int…

astro-ph200832 cited

Frequency spectra of cosmic ray air shower radio emission measured with LOPES

A. Nigl

AIMS: We wish to study the spectral dependence of the radio emission from cosmic-ray air showers around 100 PeV (1017 eV). METHODS: We observe short radio pulses in a broad frequen…

astro-ph200825 cited

Direction identification in radio images of cosmic-ray air showers detected with LOPES and KASCADE

A. Nigl

AIMS: We want to understand the emission mechanism of radio emission from air showers to determine the origin of high-energy cosmic rays. Therefore, we study the geometry of the ai…

astro-ph20073 cited

Secondary Cosmic Ray particles due to GCR interactions in the Earth's atmosphere

G. Battistoni, F. Cerutti, A. Fassò +8

Primary GCR interact with the Earth's atmosphere originating atmospheric showers, thus giving rise to fluxes of secondary particles in the atmosphere. Electromagnetic and hadronic…

astro-ph20061 cited

Radio Emission in Atmospheric Air Showers: First Measurements with LOPES-30

P. G. Isar, S. Nehls, LOPES Collaboration

When Ultra High Energy Cosmic Rays interact with particles in the Earth's atmosphere, they produce a shower of secondary particles propagating toward the ground. LOPES-30 is an abs…