Inequalities for Standard Model Yukawa couplings
Abstract We show that the Standard Model Yukawa matrices satisfy a set of simple yet nontrivial inequalities. The relations we derive are independent of the basis used to define the fermion fields, and, amongst other things, place strong constraints on the alignment of the columns of the up-type and...
| 出版年: | Journal of High Energy Physics |
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| 主要な著者: | , |
| フォーマット: | 論文 |
| 言語: | 英語 |
| 出版事項: |
SpringerOpen
2025-09-01
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| 主題: | |
| オンライン･アクセス: | https://doi.org/10.1007/JHEP09(2025)140 |
| 要約: | Abstract We show that the Standard Model Yukawa matrices satisfy a set of simple yet nontrivial inequalities. The relations we derive are independent of the basis used to define the fermion fields, and, amongst other things, place strong constraints on the alignment of the columns of the up-type and down-type Yukawa matrices, as well as their cofactor matrices. The reason why one can obtain such strong statements can be traced back to the hierarchical nature of the fermion masses and quark mixings. The inequalities should be seen as very strong necessary conditions on the SM Yukawa couplings and thus are useful for constraining flavor models. |
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| ISSN: | 1029-8479 |