Quantum gravity contributions to the gauge and Yukawa couplings in proper time flow
Fuente:
arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| Soggetti: | |
| Accesso online: | |
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| _version_ | 1866918426668171264 |
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| author | Giacometti, Gabriele Kowalska, Kamila Rizzo, Daniele Sessolo, Enrico Maria Zappala, Dario |
| author_facet | Giacometti, Gabriele Kowalska, Kamila Rizzo, Daniele Sessolo, Enrico Maria Zappala, Dario |
| contents | We derive quantum gravity contributions to the beta functions of the gauge and Yukawa couplings of a matter theory using the Schwinger proper-time flow equation. Working in the Einstein-Hilbert truncation, we investigate the gauge-fixing and regulator dependence of the corresponding renormalization group equations. We quantify the sensitivity of our results on unphysical parameters by evaluating the gravitational correction to the running matter couplings at the interactive fixed point of gravity and we compare our findings with existing determinations in alternative schemes. We finally confront the derived contributions with the typical size they should assume to generate observable low-scale predictions in the Standard Model and in several scenarios of new physics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_03033 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Quantum gravity contributions to the gauge and Yukawa couplings in proper time flow Giacometti, Gabriele Kowalska, Kamila Rizzo, Daniele Sessolo, Enrico Maria Zappala, Dario High Energy Physics - Phenomenology High Energy Physics - Theory We derive quantum gravity contributions to the beta functions of the gauge and Yukawa couplings of a matter theory using the Schwinger proper-time flow equation. Working in the Einstein-Hilbert truncation, we investigate the gauge-fixing and regulator dependence of the corresponding renormalization group equations. We quantify the sensitivity of our results on unphysical parameters by evaluating the gravitational correction to the running matter couplings at the interactive fixed point of gravity and we compare our findings with existing determinations in alternative schemes. We finally confront the derived contributions with the typical size they should assume to generate observable low-scale predictions in the Standard Model and in several scenarios of new physics. |
| title | Quantum gravity contributions to the gauge and Yukawa couplings in proper time flow |
| topic | High Energy Physics - Phenomenology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2604.03033 |