Physical running of couplings in quadratic gravity
Fuente:
arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| Soggetti: | |
| Accesso online: | |
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| _version_ | 1866917709083574272 |
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| author | Buccio, Diego Donoghue, John F. Menezes, Gabriel Percacci, Roberto |
| author_facet | Buccio, Diego Donoghue, John F. Menezes, Gabriel Percacci, Roberto |
| contents | We argue that the well-known beta functions of quadratic gravity do not correspond to the physical dependence of scattering amplitudes on external momenta, and derive the correct physical beta functions. Asymptotic freedom turns out to be compatible with the absence of tachyons. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_02397 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Physical running of couplings in quadratic gravity Buccio, Diego Donoghue, John F. Menezes, Gabriel Percacci, Roberto High Energy Physics - Theory General Relativity and Quantum Cosmology High Energy Physics - Phenomenology We argue that the well-known beta functions of quadratic gravity do not correspond to the physical dependence of scattering amplitudes on external momenta, and derive the correct physical beta functions. Asymptotic freedom turns out to be compatible with the absence of tachyons. |
| title | Physical running of couplings in quadratic gravity |
| topic | High Energy Physics - Theory General Relativity and Quantum Cosmology High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2403.02397 |