Effect of Ion Beam on Dust-Acoustic Waves Under Transverse Perturbations in Dusty Plasma

The dynamics of dust-acoustic waves (DAWs) is studied in the present investigation under transverse perturbations. We have considered dusty plasma consisting of negatively charged dust fluid, non-Maxwellian electrons, and ions embedded with positive ion beam. The Kadomtsev-Petviashvili (KP) equation is derived using a reductive perturbation method. From the solution of KP equation, the characteristics of DAWs have been studied under the influence of various plasma parameters in the presence of beam. It is noticed that characteristics (amplitude, width, and energy) of DAWs are very sensitive to the variation of the values of plasma parameters, such as ion density, beam density, beam velocity, and superthermality of ions and electrons.