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arXiv 2604.03033hep-phhep-th
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量子引力对规范耦合和Yukawa耦合的固有时间流贡献

Quantum gravity contributions to the gauge and Yukawa couplings in proper time flow

INFN, Sezione di Catania(意大利国家核物理研究所卡塔尼亚分部);National Centre for Nuclear Research(波兰国家核研究中心);Laboratory for High Energy and Computational Physics, NICPB(爱沙尼亚高等技术与生物物理中心高能计算物理实验室);Dipartimento di Fisica e Astronomia, Università di Catania(卡塔尼亚大学物理与天文学系)

Gabriele Giacometti, Kamila Kowalska, Daniele Rizzo, Enrico Maria Sessolo, Dario Zappala

AI总结:

利用Schwinger固有时间流方程推导量子引力对规范耦合和Yukawa耦合β函数的贡献,在Einstein-Hilbert截断下研究规范固定和正则化依赖性,并与现有方案比较。

摘要:

我们利用Schwinger固有时间流方程推导了量子引力对物质理论中规范耦合和Yukawa耦合β函数的贡献。在Einstein-Hilbert截断下,我们研究了相应重整化群方程的规范固定和正则化依赖性。通过评估引力对相互作用不动点处运行物质耦合的修正,量化了结果对非物理参数的敏感性,并将我们的发现与替代方案中的现有结果进行比较。最后,我们将推导出的贡献与它们在标准模型及若干新物理场景中产生可观测低能预言所应具有的典型大小进行对比。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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