arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2402.09331hep-ph
收藏

在 SU(5) 中调谐至深渊边缘

Tuning to the Edge of the Abyss in SU(5)

Howard Georgi

AI总结:

本文提出一种机制,通过将无量纲参数调谐至正定性域边界并利用Lagrangian三次项驱动对称性破缺,使得在低尺度参数的SU(5)模型中产生远高于经典尺度的GUT尺度,挑战了QFT作为有效场论的传统观点。

摘要:

我证明,若将一个无量纲参数调谐至接近正定性域的边界,且对称性破缺由 Lagrangian(拉格朗日量)中的三次项驱动,则量子场论中由 Higgs 质量所衡量的对称性破缺物理尺度,可远大于经典 Lagrangian 中的量纲尺度。辐射修正产生巨大且具有物理重要性的修正,有助于稳定大的 VEV(真空期望值)。由此得出的图景与将 QFT(量子场论)视为有效场论的“现代”观点形成鲜明对比。我描述了在 Lagrangian 中量纲参数处于低尺度的 SU(5) 模型中,该机制如何可能产生 GUT(大统一理论)尺度。

英文摘要:

I show that if a dimensionless parameter is tuned to be close to the boundary of the positivity domain and symmetry breaking is driven by a cubic term in the Lagrangian, the scale of the physics of symmetry breaking in a quantum field theory as measured by the Higgs mass can be much greater than the dimensional scales in the classical Lagrangian. Radiative corrections produce large and physically important corrections, helping to stabilize the large VEV. The resulting picture contrasts sharply with the "modern" view of QFT as an effective field theory. I describe how this mechanism might produce the GUT scale in an SU(5) model in which the dimensional parameters in the Lagrangian are at the low scale.

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。

↑