Threshold-Induced Gravitational Screening as the Origin of Inflationary Attractors
Integrating out a heavy sector generates a calculable correction to the Planck mass. The Einstein-frame potential U(χ) = V(χ)/F(χ)² dynamically acquires a plateau whenever V′/V ≈ 2F′/F.
Key results include nₛ = 0.9676, r ≃ 3.4×10⁻², αₛ ≈ −8×10⁻⁴, βₛ ≈ −4.2×10⁻⁵, and Λsc/H ≥ 12 across the posterior.
The v15 PolyChord run gives ln Z_ASG = −1409.95 ± 0.26. Matched-prior ΛCDM reference checks give ln Z = −1417.76 ± 0.33 and −1416.04 ± 0.44, implying ln B_ASG/ΛCDM ≈ +6 to +8 within this exact pipeline.
Read the ASG inflation paper in English or read the Polish version.