{"work":{"id":"bdfd4ac5-df08-4d24-b8a4-6bdf3beb892e","openalex_id":null,"doi":null,"arxiv_id":"1407.5597","raw_key":null,"title":"Causality Constraints on Corrections to the Graviton Three-Point Coupling","authors":null,"authors_text":"X","year":2014,"venue":"hep-th","abstract":"We consider higher derivative corrections to the graviton three-point coupling within a weakly coupled theory of gravity. Lorentz invariance allows further structures beyond the one present in the Einstein theory. We argue that these are constrained by causality. We devise a thought experiment involving a high energy scattering process which leads to causality violation if the graviton three-point vertex contains the additional structures. This violation cannot be fixed by adding conventional particles with spins $J \\leq 2$. But, it can be fixed by adding an infinite tower of extra massive particles with higher spins, $J > 2$. In AdS theories this implies a constraint on the conformal anomaly coefficients $\\left|{a - c \\over c} \\right| \\lesssim {1 \\over \\Delta_{gap}^2}$ in terms of $\\Delta_{gap}$, the dimension of the lightest single particle operator with spin $J > 2$. For inflation, or de Sitter-like solutions, it indicates the existence of massive higher spin particles if the gravity wave non-gaussianity deviates significantly from the one computed in the Einstein theory.","external_url":"https://arxiv.org/abs/1407.5597","cited_by_count":null,"metadata_source":"pith","metadata_fetched_at":"2026-05-23T06:32:39.023166+00:00","pith_arxiv_id":"1407.5597","created_at":"2026-05-11T05:16:05.258782+00:00","updated_at":"2026-05-23T06:32:39.023166+00:00","title_quality_ok":true,"display_title":"Camanho, J.D","render_title":"Camanho, J.D"},"hub":{"state":{"work_id":"bdfd4ac5-df08-4d24-b8a4-6bdf3beb892e","tier":"hub","tier_reason":"10+ Pith inbound or 1,000+ external citations","pith_inbound_count":11,"external_cited_by_count":null,"distinct_field_count":2,"first_pith_cited_at":"2024-12-27T17:14:14+00:00","last_pith_cited_at":"2026-05-20T18:00:01+00:00","author_build_status":"not_needed","summary_status":"needed","contexts_status":"needed","graph_status":"needed","ask_index_status":"not_needed","reader_status":"not_needed","recognition_status":"not_needed","updated_at":"2026-05-26T21:57:06.595634+00:00","tier_text":"hub"},"tier":"hub","role_counts":[{"context_role":"background","n":7}],"polarity_counts":[{"context_polarity":"background","n":7}],"runs":{},"summary":{},"graph":{},"authors":[]}}