{"paper":{"title":"Induced-Gravity Palatini-Like Higgs Inflation in Supergravity Confronts ACT DR6","license":"http://creativecommons.org/licenses/by/4.0/","headline":"Supergravity model of induced-gravity Higgs inflation matches ACT DR6 while breaking B-L symmetry at 10^16 GeV scales.","cross_cats":["astro-ph.CO","hep-th"],"primary_cat":"hep-ph","authors_text":"C. Pallis","submitted_at":"2026-02-05T12:58:52Z","abstract_excerpt":"We formulate within Supergravity a model of induced-gravity inflation, excellently consistent with ACT DR6, inspired by the Palatini gravity. The inflaton belongs in the decomposition of a conjugate pair of Higgs superfields which lead to the spontaneous breaking of a U(1)B-L symmetry at a scale close to the range (0.102-5.85)x10^16 GeV. The inflaton field is canonically normalized thanks to a real and shift-symmetric contribution into the Kaehler potential. It also includes two separate holomorphic and antiholomorphic logarithmic terms, the argument of which can be interpreted as the coupling"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"We formulate within Supergravity a model of induced-gravity inflation, excellently consistent with ACT DR6, inspired by the Palatini gravity. The inflaton belongs in the decomposition of a conjugate pair of Higgs superfields which lead to the spontaneous breaking of a U(1)B-L symmetry at a scale close to the range (0.102-5.85)x10^16 GeV.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The Kaehler potential contains a real shift-symmetric contribution together with separate holomorphic and antiholomorphic logarithmic terms whose argument is interpreted as the inflaton-Ricci scalar coupling; these terms are assumed to produce canonical normalization, subplanckian field values, and energy scales below the effective-theory cutoff.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"A Palatini-inspired induced-gravity inflation model in supergravity fits ACT DR6 data while embedding into a B-L extended MSSM with split SUSY and leptogenesis.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Supergravity model of induced-gravity Higgs inflation matches ACT DR6 while breaking B-L symmetry at 10^16 GeV scales.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"4c6633e9d78838f82b8690504ca48ab81183a399b0ad13ffd5f25f0a3864d76c"},"source":{"id":"2602.05623","kind":"arxiv","version":3},"verdict":{"id":"ef94f0fd-46fc-4503-b8fd-281f8bec71a6","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-16T07:19:43.947288Z","strongest_claim":"We formulate within Supergravity a model of induced-gravity inflation, excellently consistent with ACT DR6, inspired by the Palatini gravity. The inflaton belongs in the decomposition of a conjugate pair of Higgs superfields which lead to the spontaneous breaking of a U(1)B-L symmetry at a scale close to the range (0.102-5.85)x10^16 GeV.","one_line_summary":"A Palatini-inspired induced-gravity inflation model in supergravity fits ACT DR6 data while embedding into a B-L extended MSSM with split SUSY and leptogenesis.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The Kaehler potential contains a real shift-symmetric contribution together with separate holomorphic and antiholomorphic logarithmic terms whose argument is interpreted as the inflaton-Ricci scalar coupling; these terms are assumed to produce canonical normalization, subplanckian field values, and energy scales below the effective-theory cutoff.","pith_extraction_headline":"Supergravity model of induced-gravity Higgs inflation matches ACT DR6 while breaking B-L symmetry at 10^16 GeV scales."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2602.05623/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":137,"sample":[{"doi":"","year":2025,"title":"The Atacama Cosmology Telescope: DR6 Power Spectra, Likelihoods and $\\Lambda$CDM Parameters","work_id":"abcbecb3-ae6f-4748-a925-133dc8647d67","ref_index":1,"cited_arxiv_id":"2503.14452","is_internal_anchor":true},{"doi":"","year":2025,"title":"The Atacama Cosmology Telescope: DR6 Constraints on Extended Cosmological Models","work_id":"7d6a673d-1b44-4be4-8cb8-4500ebb3b4ea","ref_index":2,"cited_arxiv_id":"2503.14454","is_internal_anchor":true},{"doi":"","year":2018,"title":"Planck 2018 results. X. Constraints on inflation","work_id":"ac5d2133-b998-4b22-878d-b78fb5623e08","ref_index":3,"cited_arxiv_id":"1807.06211","is_internal_anchor":true},{"doi":"","year":2025,"title":"R. Kallosh, A. Linde and D. Roest, Atacama Cosmology T elescope, South Pole T elescope, and Cha otic Inflation, Phys. Rev. Lett. 135, no.16, 161001 (2025) [ arXiv:2503.21030]","work_id":"d44cf1cb-a2f9-4a7d-9d48-49c06c68e785","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":null,"title":"Po- tential Reconstruction from ACT Observations Lead- ing to Polynomialα-Attractor","work_id":"7508c898-6a3f-4398-8c8c-a83b844a0135","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":137,"snapshot_sha256":"36a56b6cf8824d8c0f78bba068de7bd79ed4f5d0039ff8e4700df3064f34951e","internal_anchors":60},"formal_canon":{"evidence_count":2,"snapshot_sha256":"85f35a728f4e8262e83302da9b9a1e3ec47845e026a42ef9e65fc08a3b2ebb6e"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}