We present new measurements of heavy cosmic-ray nuclei at high energies performed during the first flight of the balloon-borne cosmic-ray experiment Cosmic-Ray Energetics and Mass (CREAM). This instrument uses multiple charge detectors and a transition radiation detector to provide the first high accuracy measurements of the relative abundances of elements from boron to oxygen up to energies around 1 TeV/n. The data agree with previous measurements at lower energies and show a relatively steep decline (∼E^−0.6 to E^−0.5) at high energies. They further show the source abundance of nitrogen relative to oxygen is ∼10% in the TeV/n region.
H. S., A., P. S., A., Bagliesi, M.G., J. J., B., Bigongiari, G., P. J., B., et al. (2008). Measurements of cosmic ray secondary nuclei at high energy with the first flight of the CREAM balloon-borne experiment. ASTROPARTICLE PHYSICS, 30(3), 133-141 [10.1016/j.astropartphys.2008.07.010].
Measurements of cosmic ray secondary nuclei at high energy with the first flight of the CREAM balloon-borne experiment
BAGLIESI, MARIA GRAZIA;BIGONGIARI, GABRIELE;MAESTRO, PAOLO;MARROCCHESI, PIER SIMONE;
2008-01-01
Abstract
We present new measurements of heavy cosmic-ray nuclei at high energies performed during the first flight of the balloon-borne cosmic-ray experiment Cosmic-Ray Energetics and Mass (CREAM). This instrument uses multiple charge detectors and a transition radiation detector to provide the first high accuracy measurements of the relative abundances of elements from boron to oxygen up to energies around 1 TeV/n. The data agree with previous measurements at lower energies and show a relatively steep decline (∼E^−0.6 to E^−0.5) at high energies. They further show the source abundance of nitrogen relative to oxygen is ∼10% in the TeV/n region.File | Dimensione | Formato | |
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https://hdl.handle.net/11365/19082
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