Статья

Energy spectra of abundant nuclei of primary cosmic rays from the data of ATIC-2 experiment: Final results

A. D. PanovSkobel’tsyn Institute of Nuclear Physics, Moscow State University, Moscow, RussiaJ. H. AdamsMarshall Space Flight Center, Huntsville, USAH. S. AhnUniversity of Maryland, Baltimore, USAG. L. BashinzhagyanSkobel’tsyn Institute of Nuclear Physics, Moscow State University, Moscow, RussiaJ. W. WattsMarshall Space Flight Center, Huntsville, USAJ. P. WefelSoutheastern Louisiana University, Hammond, USAJ. WuUniversity of Maryland, Baltimore, USAO. GanelUniversity of Maryland, Baltimore, USAT. G. GuzikSoutheastern Louisiana University, Hammond, USAV. I. ZatsepinSkobel’tsyn Institute of Nuclear Physics, Moscow State University, Moscow, RussiaI. IsbertSoutheastern Louisiana University, Hammond, USAK. C. KimUniversity of Maryland, Baltimore, USAM. ChristlMarshall Space Flight Center, Huntsville, USAE. N. KouznetsovSoutheastern Louisiana University, Hammond, USAM. I. PanasyukSkobel’tsyn Institute of Nuclear Physics, Moscow State University, Moscow, RussiaE. S. SeoUniversity of Maryland, Baltimore, USAN. V. SokolskayaSkobel’tsyn Institute of Nuclear Physics, Moscow State University, Moscow, RussiaJ. ChangMax Planck Institute, Leipzig, GermanyW. K. H. SchmidtMax Planck Institute, Leipzig, GermanyA. R. FazelySouthern University, Baton Rouge, Louisiana, USA

2009en

ABI

Аннотация

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.

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Идентификаторы

DOI: 10.3103/s1062873809050098

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