Abstract
Waves in bi-ion plasmas are affected by asymmetry. The kinetic theory of
the Maxwellian and Lorentzian/Kappa-distributed bi-ion plasma is
ameliorated to incorporate the transfer of orbital angular momentum from
the helical electric field to the plasma modes. By operating the
Laguerre-Gaussian (LG) function, the perturbed distribution function and
helical electric field are decomposed into characteristic axial and
azimuthal components. In symmetric bi-ion plasmas, the conventional ion
modes/waves are only present if both ions have similar masses and the
concentration of the electrons is negligible. An imbalance of the
symmetry is considered by the contamination of a small fraction of the
heavy immobile ions, which urges the negative ions to become heavier
than the positive ions in the bi-ion plasma system. The distinct masses
of the positive and negative ions provoke mass-asymmetry in the
Kappa-distributed bi-ion plasmas. The signature of the unique
acoustic-laden twisted modes in non-Maxwellian asymmetric bi-ion plasma
is perceived by the temperature of the lighter positive ions and the
dynamics of the heavier negative ion. The deliberated results of Landau
damping are displayed for distinct values of the azimuthal wave-number
and spectral index, temperature-variation and mass-asymmetry.