Yukawa Textures with Enhanced Symmetries in Heterotic Calabi-Yau Compactifications
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , , |
|---|---|
| Format: | Preprint |
| Publié: |
2026
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866915825720492032 |
|---|---|
| author | Dong, Jun Kobayashi, Tatsuo Miyamoto, Shuhei Otsuka, Hajime |
| author_facet | Dong, Jun Kobayashi, Tatsuo Miyamoto, Shuhei Otsuka, Hajime |
| contents | We clarify the structure of Yukawa couplings and mass matrices for matter fields in heterotic string theory on smooth Calabi-Yau threefolds with standard embedding. The topological structure of Calabi-Yau threefolds leads to interesting Yukawa textures that cannot be derived from group-theoretical symmetries, e.g., the so-called Weinberg texture in the case of two generations of matter fields. Furthermore, we find that a $U(2)$ flavor symmetry, which plays an important role in controlling higher-dimensional operators in the Standard Model effective field theory, emerges at specific loci in the moduli space of multi-Higgs fields. Small perturbations around these loci generate semi-realistic patterns of quark masses and mixings. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_00864 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Yukawa Textures with Enhanced Symmetries in Heterotic Calabi-Yau Compactifications Dong, Jun Kobayashi, Tatsuo Miyamoto, Shuhei Otsuka, Hajime High Energy Physics - Theory High Energy Physics - Phenomenology We clarify the structure of Yukawa couplings and mass matrices for matter fields in heterotic string theory on smooth Calabi-Yau threefolds with standard embedding. The topological structure of Calabi-Yau threefolds leads to interesting Yukawa textures that cannot be derived from group-theoretical symmetries, e.g., the so-called Weinberg texture in the case of two generations of matter fields. Furthermore, we find that a $U(2)$ flavor symmetry, which plays an important role in controlling higher-dimensional operators in the Standard Model effective field theory, emerges at specific loci in the moduli space of multi-Higgs fields. Small perturbations around these loci generate semi-realistic patterns of quark masses and mixings. |
| title | Yukawa Textures with Enhanced Symmetries in Heterotic Calabi-Yau Compactifications |
| topic | High Energy Physics - Theory High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2603.00864 |