Seesaw Limit of the Nelson-Barr Mechanism
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_ | 1866909439682936832 |
|---|---|
| author | Cherchiglia, A. L. Dias, A. G. Leite, J. Nishi, C. C. |
| author_facet | Cherchiglia, A. L. Dias, A. G. Leite, J. Nishi, C. C. |
| contents | We investigate how the solution to the strong CP problem and the explanation for the observed fermion mass hierarchies can be intrinsically related. Specifically, we explore the Nelson-Barr mechanism and identify its "seesaw limit", where light quark masses are suppressed by large CP-violating terms. Upon adding three (two) vector-like quarks that mix with the down-type (up-type) quark sector of the Standard Model, we demonstrate how the lack of CP violation in the strong sector and the observed quark mass hierarchy can be simultaneously achieved. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_16945 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Seesaw Limit of the Nelson-Barr Mechanism Cherchiglia, A. L. Dias, A. G. Leite, J. Nishi, C. C. High Energy Physics - Phenomenology We investigate how the solution to the strong CP problem and the explanation for the observed fermion mass hierarchies can be intrinsically related. Specifically, we explore the Nelson-Barr mechanism and identify its "seesaw limit", where light quark masses are suppressed by large CP-violating terms. Upon adding three (two) vector-like quarks that mix with the down-type (up-type) quark sector of the Standard Model, we demonstrate how the lack of CP violation in the strong sector and the observed quark mass hierarchy can be simultaneously achieved. |
| title | Seesaw Limit of the Nelson-Barr Mechanism |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2404.16945 |