MEASUREMENT OF BORON AND CARBON FLUXES IN COSMIC RAYS WITH THE PAMELA EXPERIMENT

By O. Adriani, G. Barbarino, Galina Bazilevskaya, R. Bellotti, M. Boezio, É. Bogomolov, M. Bongi, V. Bonvicini, S. Bottai, A. Bruno and 54 more. 2014

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The propagation of cosmic rays inside our galaxy plays a fundamental role in shaping their injection spectra into those observed at Earth. One of the best tools to investigate this issue is the ratio of fluxes for secondary and primary species. The boron-to-carbon (B/C) ratio, in particular, is a sensitive probe to investigate propagation mechanisms. This paper presents new measurements of the absolute fluxes of boron and carbon nuclei as well as the B/C ratio from the PAMELA space experiment. The results span the range 0.44–129 GeV/n in kinetic energy for data taken in the period 2006 July to 2008 March.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/e38eed9e4ea582f41da7baec53c4f467fd6b0842

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Citations in the corpus

• The Nine Lives of Cosmic Rays in Galaxies (2015, background): “In principle, the abundances of Li, Be, and B can be measured both in interstellar gas and in the Galactic CR spectrum (e.g., Adriani et al. 2014).”