Distributions of binary semi-major axes (top panel) and eccentricities (middle panel) of post-encounter binaries, and encounter duration (bottom panel) for different disc velocity dispersions σ. The blue, orange, and green histograms correspond to σ = 10⁻¹, 10⁻², and 10⁻³, respectively. The encounter duration is shown in units of the initial inner binary period, which is different for each realisation. The eccentricity distributions become more skewed towards e ∼ 1 as the disc velocity dispersion decreases, so that for σ ≥ 10⁻³ they are roughly thermal, while for σ ≤ 10⁻⁴ they are superthermal. The distribution of encounter duration shows two peaks, corresponding to prompt and resonant interactions, with the former peak being more pronounced in set σ-1.