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 |
|---|---|
| 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. |