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Mean free path of solar electrons and nucleons
Received 28 May 1999 / Accepted 9 August 1999
The quasilinear scattering mean free path of solar flare electrons and nucleons is calculated for interplanetary plasma wave turbulence consisting of a mixture of slab shear Alfvén waves and isotropic fast magnetosonic waves. It is shown that for well-sampled electron and nucleon mean free paths over a wide and overlapping energy range the underlying frequency power spectra of left-handed and right-handed slab Alfvén waves can be uniquely determined. Moreover, we demonstrate that the flatness and magnitude problems of quasilinear mean free paths of solar flare particles can be resolved if the interplanetary slab Alfvén magnetic power spectrum varies in wavenumber as with below and above where is the inverse of the ion skin length.
Key words: plasmas turbulence Sun: flares Sun: particle emission
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Online publication: November 2, 1999