The oblique parameters from arbitrary new fermions
Fuente:
arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| _version_ | 1866929346510323712 |
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| author | Albergaria, Francisco Jurčiukonis, Darius Lavoura, Luís |
| author_facet | Albergaria, Francisco Jurčiukonis, Darius Lavoura, Luís |
| contents | We compute the six oblique parameters $S, T, U, V, W, X$ in a New Physics Model with an arbitrary number of new fermions, in arbitrary representations of $SU(2) \times U(1)$, and mixing arbitrarily among themselves. We show that $S$ and $U$ are automatically finite, but $T$ is finite only if there is a specific relation between the masses of the new fermions and the representations of $SU(2) \times U(1)$ that they sit in. We apply our general computation to two illustrative cases. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_09099 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | The oblique parameters from arbitrary new fermions Albergaria, Francisco Jurčiukonis, Darius Lavoura, Luís High Energy Physics - Phenomenology We compute the six oblique parameters $S, T, U, V, W, X$ in a New Physics Model with an arbitrary number of new fermions, in arbitrary representations of $SU(2) \times U(1)$, and mixing arbitrarily among themselves. We show that $S$ and $U$ are automatically finite, but $T$ is finite only if there is a specific relation between the masses of the new fermions and the representations of $SU(2) \times U(1)$ that they sit in. We apply our general computation to two illustrative cases. |
| title | The oblique parameters from arbitrary new fermions |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2312.09099 |