Finite Naturalness and Quark-Lepton Unification
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2023
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866907769773228032 |
|---|---|
| author | Perez, Pavel Fileviez Murgui, Clara Patrone, Samuel Testa, Adriano Wise, Mark B. |
| author_facet | Perez, Pavel Fileviez Murgui, Clara Patrone, Samuel Testa, Adriano Wise, Mark B. |
| contents | We study the implications of finite naturalness in Pati-Salam models where $SU(3)_C$ is embedded in $SU(4)$. For the minimal realization at low-scale of quark-lepton unification, which employs the inverse seesaw for neutrino masses, we find that radiative corrections to the Higgs boson mass are at least $δm_h^2 / m_h^2 \sim {\cal O}(10^4)$. The one-loop contributions to the Higgs mass are suppressed by four powers of the hypercharge gauge coupling. We find that for the vector leptoquarks the naively leading part of the two-loop corrections cancel. We assume the Dirac Yukawa couplings for neutrinos are equal to the up-type quark Yukawa couplings as predicted in the minimal theory for quark-lepton unification. Despite these findings, the two-loop corrections still dominate the finite naturalness bound. We mention a way to relax the lower bound on the vector leptoquark mass and have $δm_h^2 / m_h^2 \sim {\cal O}(10^2)$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2308_07367 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Finite Naturalness and Quark-Lepton Unification Perez, Pavel Fileviez Murgui, Clara Patrone, Samuel Testa, Adriano Wise, Mark B. High Energy Physics - Phenomenology We study the implications of finite naturalness in Pati-Salam models where $SU(3)_C$ is embedded in $SU(4)$. For the minimal realization at low-scale of quark-lepton unification, which employs the inverse seesaw for neutrino masses, we find that radiative corrections to the Higgs boson mass are at least $δm_h^2 / m_h^2 \sim {\cal O}(10^4)$. The one-loop contributions to the Higgs mass are suppressed by four powers of the hypercharge gauge coupling. We find that for the vector leptoquarks the naively leading part of the two-loop corrections cancel. We assume the Dirac Yukawa couplings for neutrinos are equal to the up-type quark Yukawa couplings as predicted in the minimal theory for quark-lepton unification. Despite these findings, the two-loop corrections still dominate the finite naturalness bound. We mention a way to relax the lower bound on the vector leptoquark mass and have $δm_h^2 / m_h^2 \sim {\cal O}(10^2)$. |
| title | Finite Naturalness and Quark-Lepton Unification |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2308.07367 |