Abstract
The origin and evolution of lithium–beryllium–boron is a crossing point between different astrophysical fields: optical and gamma spectroscopy, nonthermal nucleosynthesis, Big Bang and stellar nucleosynthesis and finally galactic evolution. We describe the production and the evolution of lithium–beryllium–boron from Big Bang up to now through (i) the interaction of the Standard Galactic Cosmic Rays with the interstellar medium, (ii) supernova neutrino spallation, and (iii) a low-energy component related to supernova explosions in galactic superbubbles.
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