Flavour symmetries in the SMEFT
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
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2020
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| _version_ | 1866909586674417664 |
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| author | Faroughy, Darius A. Isidori, Gino Wilsch, Felix Yamamoto, Kei |
| author_facet | Faroughy, Darius A. Isidori, Gino Wilsch, Felix Yamamoto, Kei |
| contents | We analyse how $U(3)^5$ and $U(2)^5$ flavour symmetries act on the Standard Model Effective Field Theory, providing an organising principle to classify the large number of dimension-six operators involving fermion fields. A detailed counting of such operators, at different order in the breaking terms of both these symmetries, is presented. A brief discussion about possible deviations from these two reference cases, and a simple example of the usefulness of this classification scheme for high-$p_T$ analyses at the LHC, are also presented. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2005_05366 |
| institution | arXiv |
| publishDate | 2020 |
| record_format | arxiv |
| spellingShingle | Flavour symmetries in the SMEFT Faroughy, Darius A. Isidori, Gino Wilsch, Felix Yamamoto, Kei High Energy Physics - Phenomenology We analyse how $U(3)^5$ and $U(2)^5$ flavour symmetries act on the Standard Model Effective Field Theory, providing an organising principle to classify the large number of dimension-six operators involving fermion fields. A detailed counting of such operators, at different order in the breaking terms of both these symmetries, is presented. A brief discussion about possible deviations from these two reference cases, and a simple example of the usefulness of this classification scheme for high-$p_T$ analyses at the LHC, are also presented. |
| title | Flavour symmetries in the SMEFT |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2005.05366 |