{"paper":{"title":"Palatini quadratic gravity: spontaneous breaking of gauged scale symmetry and inflation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","gr-qc","hep-ph"],"primary_cat":"hep-th","authors_text":"D. M. Ghilencea","submitted_at":"2020-03-19T00:11:40Z","abstract_excerpt":"We study quadratic gravity $R^2+R_{[\\mu\\nu]}^2$ in the Palatini formalism where the connection and the metric are independent. This action has a {\\it gauged} scale symmetry (also known as Weyl gauge symmetry) of Weyl gauge field $v_\\mu= (\\tilde\\Gamma_\\mu-\\Gamma_\\mu)/2$, with $\\tilde\\Gamma_\\mu$ ($\\Gamma_\\mu$) the trace of the Palatini (Levi-Civita) connection, respectively. The underlying geometry is non-metric due to the $R_{[\\mu\\nu]}^2$ term acting as a gauge kinetic term for $v_\\mu$. We show that this theory has an elegant spontaneous breaking of gauged scale symmetry and mass generation in "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2003.08516","kind":"arxiv","version":5},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2003.08516/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}