Elastic and inelastic particles scattering by dust acoustic soliton. A new oscillatory process in dusty plasma

The parameters of scattering (reflection) of charged particles by the leading edge of a dust acoustic soliton are analyzed. The soliton profile is calculated using the Sagdeev pseudopotential approach. To analyze the motion of charged particles, the Newton’s second law is used. It is shown theoretic...

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Bibliographic Details
Published in:New journal of physics 2021-09, Vol.23 (9), p.93016
Main Authors: Trukhachev, F M, Gerasimenko, N V, Vasiliev, M M, Petrov, O F
Format: Article
Language:English
Subjects:
Charged particles
charged particles oscillation
Dust
Dusty plasmas
Elastic scattering
Inelastic scattering
Oscillations
Parameters
particle scattering
Physics
Solitary waves
soliton
wave–particle interaction
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Summary:The parameters of scattering (reflection) of charged particles by the leading edge of a dust acoustic soliton are analyzed. The soliton profile is calculated using the Sagdeev pseudopotential approach. To analyze the motion of charged particles, the Newton’s second law is used. It is shown theoretically that the charged particle scattering can be elastic and inelastic. The nature of scattering significantly depends on the presence of dissipation. In the dissipative case, charged particles scattering is the process of an oscillatory nature. It is shown that it can be considered as a new type of oscillations of charged particles in plasma. The parameters of the oscillations are calculated both numerically (nonlinear case) and analytically (within the linear approximation). Theoretical results are compared with known experimental results, as well as the applied aspect is stated.
ISSN:1367-2630
1367-2630
DOI:10.1088/1367-2630/ac20ba