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20022009
most citedCosmic-ray positron fraction measurement from 1 to 30 GeV with AMS-01

316 citations

Showing 2008Show all

6 papers · 1 filter

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…

math.DG2008

Eigenvalues of harmonic almost submersions

E. Loubeau, R. Slobodeanu

Maps between Riemannian manifolds which are submersions on a dense subset, are studied by means of the eigenvalues of the pull-back of the target metrics, the first fundamental for…

quant-ph2008

Non-Gaussian continuous-variable teleportation

Paulina Marian, Tudor A. Marian

We have recently shown that the output field in the Braunstein-Kimble protocol of teleportation is a superposition of two fields: the input one and a field created by Alice's measu…

nucl-th2008

Experimental Evidence for Optimal Resonances in Pion-Nucleus Scattering

D. B. Ion, M. L. D. Ion, R. Ion-Mihai +2

Experimental data on the pion-nucleus total cross sections are analyzed in terms of the optimal resonances predictions (OR). The OR-predictions are found in a good agreement with t…

math.QA2008

The antipode of a dual quasi-Hopf algebra with nonzero integrals is bijective

Margaret Beattie, Miodrag Cristian Iovanov, Serban Raianu

For a Hopf algebra of arbitrary dimension over a field , it is well-known that if has nonzero integrals, or, in other words, if the coalgebra is co-Frobenius, then t…