{
  "annotation_id": "13628c6b-b9ed-4ee2-8d97-d058d0794485",
  "date_created": "2026-02-17T05:53:20.292000Z",
  "date_modified": "2026-02-17T05:53:20.292000Z",
  "file_hash": "85d3f2b0e04b7c452dcb067d82898678a2f050c6174f0bda87a68b3d09080759",
  "private": false,
  "record": {
    "abstract": "In this paper, we explore the inflationary dynamics of the $\\beta$-exponential potential model, where a scalar field couples to quadratic $(R + R^2)$ gravity. In this model, the inflaton is the field that determines the size of the extra dimension. We employ the Palatini formalism to derive the resulting Einstein-frame generalized $k$-inflation effective theory, which we analyze under the assumption that the constant-roll condition is satisfied.\n  We scan the parameter space for inflationary predictions, specifically the spectral index $n_s$ and the tensor-to-scalar ratio $r$, ensuring consistency with the results from ACT DR6. The compliant regions are depicted accordingly. For a suitable range of the model parameters, the values obtained for the inflationary observables align with the most recent observations by the Atacama Cosmology Telescope (ACT) collaboration and/or the Planck mission.",
    "arxiv_id": "2601.09664",
    "authors": [
      "Ozan Sarg\u0131n"
    ],
    "categories": [
      "gr-qc",
      "astro-ph.CO",
      "hep-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "title": "Constant-roll $\\beta$-exponential inflation: Palatini formalism",
    "url": "https://arxiv.org/abs/2601.09664",
    "version": "v1"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b5dafeeb-2ee3-44c1-b3a6-795344c7f4c5",
    "id": "arXiv Dataset",
    "type": "Model",
    "variant": "snapshot-2026-01-17",
    "version": "0.1.0"
  },
  "user_id": 1000002
}