Renormalization of effective field theories via on-shell methods: the case of axion-like particles
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866910252747718656 |
|---|---|
| author | Bresciani, Luigi C. Brunello, Giacomo Levati, Gabriele Mastrolia, Pierpaolo Paradisi, Paride |
| author_facet | Bresciani, Luigi C. Brunello, Giacomo Levati, Gabriele Mastrolia, Pierpaolo Paradisi, Paride |
| contents | We consider the most general axion-like particle effective field theory, including both CP-odd and CP-even types of interactions, and evaluate the corresponding renormalization group equations, improving and extending previous results in the literature. Our calculations exploit on-shell and unitarity-based methods. The relevant phase-space cut-integrals are carried out using different integration methods, among which the double-cut integration via Stokes' theorem proves to be technically simpler. A close comparison between the standard Feynman diagrammatic approach and the unitarity-based method enables us to explicitly verify the reduction of complexity in the latter case, along with a more direct and elegant way to establish a connection among anomalous dimensions of operators that are dual under the CP symmetry. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_04160 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Renormalization of effective field theories via on-shell methods: the case of axion-like particles Bresciani, Luigi C. Brunello, Giacomo Levati, Gabriele Mastrolia, Pierpaolo Paradisi, Paride High Energy Physics - Phenomenology High Energy Physics - Theory We consider the most general axion-like particle effective field theory, including both CP-odd and CP-even types of interactions, and evaluate the corresponding renormalization group equations, improving and extending previous results in the literature. Our calculations exploit on-shell and unitarity-based methods. The relevant phase-space cut-integrals are carried out using different integration methods, among which the double-cut integration via Stokes' theorem proves to be technically simpler. A close comparison between the standard Feynman diagrammatic approach and the unitarity-based method enables us to explicitly verify the reduction of complexity in the latter case, along with a more direct and elegant way to establish a connection among anomalous dimensions of operators that are dual under the CP symmetry. |
| title | Renormalization of effective field theories via on-shell methods: the case of axion-like particles |
| topic | High Energy Physics - Phenomenology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2412.04160 |