New approach to cosmic-ray diffusion theory

Journal Article · Mon Aug 13 04:00:00 EDT 1973 · Phys. Rev. Lett., v. 31, no. 7, pp. 485-487

DOI:https://doi.org/10.1103/PhysRevLett.31.485· OSTI ID:4318239

Jones, F C; Kaiser, T B; Birmingham, T J

We have investigated a new approach to deriving a diffusion equation for charged particles in a static, random magnetic field. Our method incoraporates essential effects of the magnetic fluctuations in the lowest order particle orbits. Significant corrections to the usual quasilinear diffusion coefficient for cosmic rays with pitch angles near 90 deg are a consequence. Monte Carlo results bear out the validity of our theory. (auth)

• Research Organization: Theoretical Studies Branch, NASA Goddard Space Flight Center, Greenbelt, Maryland, 20771
• Sponsoring Organization: USDOE
• NSA Number: NSA-29-021720
• OSTI ID: 4318239
• Journal Information: Phys. Rev. Lett., v. 31, no. 7, pp. 485-487, Journal Name: Phys. Rev. Lett., v. 31, no. 7, pp. 485-487; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

*COSMIC RADIATION-- DIFFUSION
*MAGNETIC FIELDS-- CHARGED-PARTICLE TRANSPORT
DISTRIBUTION FUNCTIONS
KINETIC EQUATIONS
MONTE CARLO METHOD
N56100* --Physics (Astrophysics & Cosmology)--Cosmic Radiation