The Gauss-Bonnet Coupling Constant in Classically Scale-Invariant Gravity
| Autor: | D. R. Timothy Jones, Martin B. Einhorn |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
High Energy Physics - Theory
Coupling constant Coupling Physics Nuclear and High Energy Physics Instanton Quantum field theory in curved spacetime FOS: Physical sciences General Relativity and Quantum Cosmology (gr-qc) General Relativity and Quantum Cosmology Renormalization Gravitation High Energy Physics - Phenomenology High Energy Physics::Theory High Energy Physics - Phenomenology (hep-ph) High Energy Physics - Theory (hep-th) Quantum gravity Signature (topology) Mathematical physics |
| DOI: | 10.48550/arxiv.1412.5572 |
| Popis: | We discuss the renormalization of higher-derivative gravity, both without and with matter fields, in terms of two primary coupling constants rather than three. A technique for determining the dependence of the Gauss-Bonnet coupling constant on the remaining couplings is explained, and consistency with the local form of the Gauss-Bonnet relation in four dimensions is demonstrated to all orders in perturbation theory. A similar argument is outlined for the Hirzebruch signature and its coupling. We speculate upon the potential implications of instantons on the associated nonperturbative coupling constants. Comment: 11 pages, no figures, revtex-4.1. v2 includes additional references and minor changes in text. v3 has minor changes in text in Section II.B. Results unchanged |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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