Particle Scattering in Cusp-Like Current Sheet

Interactive Parameters Scan

Basic Parameters

Field Line Profiles

Geometric Configuration

The corresponding field-line trajectory is

\[ x(z) = \frac{B_0}{B_n}\,\frac{\tfrac{1}{2}(z/L)^2}{1 + \tfrac{a}{2}(z/L)^2} \]

which is the profile shown in the figure: field lines bend toward the current sheet centre (\(z=0\)) from both sides and approach an asymptote \(x_\infty = B_0/(a B_n)\) as \(|z|\to\infty\).

References

• Artemyev et al. (2013)
• Artemyev et al. (2020)
• Malara et al. (2021)

References

Artemyev, A. V., A. I. Neishtadt, A. A. Vasiliev, V. Angelopoulos, A. A. Vinogradov, and L. M. Zelenyi. 2020. “Superfast Ion Scattering by Solar Wind Discontinuities.” Physical Review E 102 (3): 033201. https://doi.org/10.1103/PhysRevE.102.033201.

Artemyev, A. V., A. I. Neishtadt, and L. M. Zelenyi. 2013. “Ion Motion in the Current Sheet with Sheared Magnetic Field – Part 1: Quasi-adiabatic Theory.” Nonlinear Processes in Geophysics 20 (1): 163–78. https://doi.org/10.5194/npg-20-163-2013.

Malara, Francesco, Silvia Perri, and Gaetano Zimbardo. 2021. “Charged-Particle Chaotic Dynamics in Rotational Discontinuities.” Physical Review E 104 (2): 025208. https://doi.org/10.1103/PhysRevE.104.025208.