Cosmic ray perpendicular diffusion coefficients calculated from the Newton-Lorentz equation

Details Cosmic ray perpendicular diffusion coefficients calculated from the Newton-Lorentz equation Cosmic ray perpendicular diffusion coefficients calculated from the Newton-Lorentz equation

May 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agusmsh43b..10s&link_type=abstract

American Geophysical Union, Spring Meeting 2008, abstract #SH43B-10

Physics

2104 Cosmic Rays, 2149 Mhd Waves And Turbulence (2752, 6050, 7836), 7859 Transport Processes, 7867 Wave/Particle Interactions (2483, 6984)

Scientific paper

We present new analytical results for cosmic ray perpendicular diffusion coefficients. Previous results have been derived by assuming that charged particles follow magnetic field lines. Here we demonstrate how charged particle diffusion coefficients can directly be derived from the Newton-Lorentz equation. As an first example we employ quasilinear theory and we show that perpendicular scattering is caused by two effects. The first effect is that charged particles follow magnetic field lines. This process is well known in particle diffusion theory. The second effect is that charged particles can be scattered away from a single field line. This second effect is new and can be described as a gyroresonant process. We show that for certain turbulence wave spectra the field line contribution is dominant wheras for spectra which have been proposed more recently the new gyroresonant contribution is dominant. In the latter case we obtain a rigidity dependent perpendicular mean free path even within quasilinear theory. Also a combination of recent nonlinear transport theories with our new approach is

Affiliated with

Also associated with

No associations

Rating

Cosmic ray perpendicular diffusion coefficients calculated from the Newton-Lorentz equation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Cosmic ray perpendicular diffusion coefficients calculated from the Newton-Lorentz equation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cosmic ray perpendicular diffusion coefficients calculated from the Newton-Lorentz equation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1399905