A Simple Dirac Prescription for Two-Loop Anomalous Dimension Matrices
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arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866929447795425280 |
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| author | Aebischer, Jason Pesut, Marko Polonsky, Zachary |
| author_facet | Aebischer, Jason Pesut, Marko Polonsky, Zachary |
| contents | A novel method to treat effects from evanescent operators in next-to-leading order (NLO) computations is introduced. The approach allows, besides further simplifications, to discard evanescent-to-physical mixing contributions in NLO calculations. The method is independent of the treatments of $γ_5$ and can therefore be combined with different renormalization schemes. We illustrate the utility of this result by reproducing literature results of two-loop anomalous dimension matrices for both $|ΔF| = 1$ and $|ΔF| = 2$ transitions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_16904 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | A Simple Dirac Prescription for Two-Loop Anomalous Dimension Matrices Aebischer, Jason Pesut, Marko Polonsky, Zachary High Energy Physics - Phenomenology A novel method to treat effects from evanescent operators in next-to-leading order (NLO) computations is introduced. The approach allows, besides further simplifications, to discard evanescent-to-physical mixing contributions in NLO calculations. The method is independent of the treatments of $γ_5$ and can therefore be combined with different renormalization schemes. We illustrate the utility of this result by reproducing literature results of two-loop anomalous dimension matrices for both $|ΔF| = 1$ and $|ΔF| = 2$ transitions. |
| title | A Simple Dirac Prescription for Two-Loop Anomalous Dimension Matrices |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2401.16904 |