تقرير
Anomalous Dimensions via on-shell Methods: Operator Mixing and Leading Mass Effects
العنوان: | Anomalous Dimensions via on-shell Methods: Operator Mixing and Leading Mass Effects |
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المؤلفون: | Bresciani, L. C., Levati, G., Mastrolia, P., Paradisi, P. |
سنة النشر: | 2023 |
المجموعة: | High Energy Physics - Phenomenology High Energy Physics - Theory |
مصطلحات موضوعية: | High Energy Physics - Phenomenology, High Energy Physics - Theory |
الوصف: | We elaborate on the application of on-shell and unitarity-based methods for evaluating renormalization group coefficients, and generalize this framework to account for the mixing of operators with different dimensions and leading mass effects. We derive a master formula for anomalous dimensions stemming from the general structure of operator mixings, up to two-loop order, and show how the Higgs low-energy theorem can be exploited to include leading mass effects. A few applications on the renormalization properties of popular effective field theories showcase the strength of the proposed approach, which drastically reduces the complexity of standard loop calculations. Our results provide a powerful tool to interpret experimental measurements of low-energy observables, such as flavor violating processes or electric and magnetic dipole moments, as induced by new physics emerging above the electroweak scale. Comment: 6 pages, 4 figures |
نوع الوثيقة: | Working Paper |
URL الوصول: | http://arxiv.org/abs/2312.05206 |
رقم الأكسشن: | edsarx.2312.05206 |
قاعدة البيانات: | arXiv |
الوصف غير متاح. |