Energy spectra of abundant nuclei of primary cosmic rays from the data of ATIC-2 experiment: Final results
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Open Access
- 1 May 2009
- journal article
- Published by Allerton Press in Bulletin of the Russian Academy of Sciences: Physics
- Vol. 73 (5), 564-567
- https://doi.org/10.3103/s1062873809050098
Abstract
The final results of processing the data from the balloon-born experiment ATIC-2 (Antarctica, 2002–2003) for the energy spectra of protons and He, C, O, Ne, Mg, Si, and Fe nuclei, the spectrum of all particles, and the mean logarithm of atomic weight of primary cosmic rays as a function of energy are presented. The final results are based on improvement of the methods used earlier, in particular, considerably increased resolution of the charge spectrum. The preliminary conclusions on the significant difference in the spectra of protons and helium nuclei (the proton spectrum is steeper) and the non-power character of the spectra of protons and heavier nuclei (flattening of carbon spectrum at energies above 10 TeV) are confirmed. A complex structure of the energy dependence of the mean logarithm of atomic weight is found.Keywords
This publication has 11 references indexed in Scilit:
- Measurement of Cosmic Ray Primary Energy with the Atmospheric Cherenkov Light Technique in Extensive Air ShowersNuclear Physics B - Proceedings Supplements, 2007
- The energy spectra of heavy nuclei measured by the ATIC experimentAdvances in Space Research, 2006
- Measurements of primary and atmospheric cosmic-ray spectra with the BESS-TeV spectrometerPhysics Letters B, 2004
- The silicon matrix as a charge detector in the ATIC experimentNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2004
- The ATIC long duration balloon projectAdvances in Space Research, 2004
- The cosmic-ray proton and helium spectra measured with the CAPRICE98 balloon experimentAstroparticle Physics, 2003
- Helium in near Earth orbitPhysics Letters B, 2000
- Cosmic protonsPhysics Letters B, 2000
- Elemental abundance of high energy cosmic raysNuclear Physics B - Proceedings Supplements, 1998
- Energy spectra and composition of primary cosmic raysThe Astrophysical Journal, 1991