{"id":"fb0ab094-3272-406f-bcb0-e13ff84e6490","arxiv_id":"2411.07995","paper_version":2,"verdict":"CONDITIONAL","confidence":"MODERATE","novelty_score":4.0,"correctness_risk":"medium","formal_verification":"none","parameter_count":5,"one_line_summary":"Large-field polynomial inflation in Palatini f(R, phi) gravity can match Planck and BICEP/Keck data over broad parameter regions, and a negative R-squared coupling can suppress the tensor-to-scalar ratio to CMB-S4 levels.","lead":"The authors compute how a fourth-degree polynomial inflaton potential behaves in four versions of Palatini gravity and map which parameter choices match observed cosmic microwave background data. The maps show that adding an R-squared term can hide the model's gravitational wave signal from current and near-future detectors, which matters for deciding which inflationary models are worth pursuing.","discovery_kind":"extension","skeptic_critique":null,"referee_report":null,"author_rebuttal":null,"desk_editor":null,"rs_alignment":null,"lean_confirmation":null,"pith_extraction":null,"created_at":"2026-08-12T22:03:13.071184+00:00","model_set":{"reader":"deepseek-v4-flash"},"falsifier":null,"supporting_citations":[],"review_version":1}