Nonlinear ion-acoustic solitary waves in an electron-positron-ion plasma with relativistic positron beam

Sarma Ridip¹, Misra Amar P², Adhikary Nirab C^{3, †}

(color online) The soliton width Δ is plotted with respect to the ion temperature σ along with variable positron concentration μ_b, where μ_b is 0.5, 0.7, and 0.9 for blue dotted, red dashed, and green bold lines, respectively, and other plasma parameters are c₁ = 10³, , α = 0.2, β₁ = 0.005, and β₂ = 0.0054.