One-loop pseudo-Goldstone masses in the minimal SO(10) Higgs model
| Autor: | Michal Malinský, Lukas Graf, V. Susic, Timon Mede |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Physics
Particle physics 010308 nuclear & particles physics High Energy Physics::Phenomenology Scalar (mathematics) 01 natural sciences Standard Model (mathematical formulation) Gauge group Antisymmetric tensor 0103 physical sciences Higgs boson SO(10) 010306 general physics Mathematical physics Gauge symmetry Boson |
| Zdroj: | Physical Review D. 95 |
| ISSN: | 2470-0029 2470-0010 |
| DOI: | 10.1103/physrevd.95.075007 |
| Popis: | We calculate the prominent perturbative contributions shaping the one-loop scalar spectrum of the minimal non-supersymmetric renormalizable $SO(10)$ Higgs model whose unified gauge symmetry is spontaneously broken by an adjoint scalar. Focusing on its potentially realistic $45\oplus 126$ variant in which the rank is reduced by a VEV of the 5-index self-dual antisymmetric tensor, we provide a thorough analysis of the corresponding one-loop Coleman-Weinberg potential, paying particular attention to the masses of the potentially tachyonic pseudo-Goldstone bosons (PGBs) transforming as $(8,1,0)$ and $(1,3,0)$ under the Standard Model gauge group. The results confirm the assumed existence of extended regions in the parameter space supporting a locally stable SM-like quantum vacuum inaccessible at the tree-level. The effective potential (EP) tedium is compared to that encountered in the previously studied $45\oplus 16$ $SO(10)$ Higgs model where the polynomial corrections to the relevant pseudo-Goldstone masses turn out to be easily calculable within a very simplified purely diagrammatic approach. |
| Databáze: | OpenAIRE |
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