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Diffusion of cosmic-ray nuclei in the atmosphere: Spectra and composition

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Il Nuovo Cimento C

Summary

The diffusion equations of primary cosmic-ray nuclei in the atmosphere have been solved, assuming different shapes of the prmary energy spectra, and deriving a new simple analytical form of the solutions. Variations in the upper atmosphere of the spectra and charge ratios of the different groups of nuclei are derived.

Riassunto

Sono state risolte le equazioni di diffusione dei nuclei primari della radiazione cosmica nell'atmosfera, consderando differenti forme degli spettri di energia primari, e ottenendo una nuova e semplice forma analitica delle soluzioni. Si presentano le variazioni, nell'alta atmosfera, degli spettri e dei rapporti di carica dei diversi gruppi di nuclei.

Резюме

Решаются диффузионные уравнения для распространения ядер первичного космического излучения в атмосфере, предполагая различные формы спектров первичных энергий, и получается новая простая аналитическая форма решений. Для верхних слоев атмосферы выводятся изменения спектров и зарядовых отношений для различных групп ядер.

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References

  1. C. E. Fichtel andD. V. Reames:Phys. Rev.,149, 995 (1966);S. Hayakawa:Cosmic Ray Physics (New York, N. Y., 1969), p. 324, and references quoted there.

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  2. E. Juliusson:Proceedings of the XIV International Cosmic-Ray Conference, Vol.8 (München, 1975), p. 2689.

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  3. P. S. Freier andC. Waddington:Astrophys. Space Sci.,38, 419 (1975).

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Alessio, S., Dardo, M. Diffusion of cosmic-ray nuclei in the atmosphere: Spectra and composition. Il Nuovo Cimento C 2, 465–472 (1979). https://doi.org/10.1007/BF02558287

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  • DOI: https://doi.org/10.1007/BF02558287

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