| Article | |
| Report number | arXiv:2202.01228 ; CERN-TH-2022-012 |
| Title | Gegenbauer's Twin |
| Author(s) | Durieux, Gauthier (CERN) ; McCullough, Matthew (CERN) ; Salvioni, Ennio (U. Padua, Dept. Phys. Astron. ; INFN, Padua) |
| Publication | 2022-05-20 |
| Imprint | 2022-02-02 |
| Number of pages | 7 |
| Note | 7 pages, 2 figures; v2: minor changes and added Figure 1, matches published version |
| In: | JHEP 2205 (2022) pp.140 |
| DOI | 10.1007/JHEP05(2022)140 10.1007/JHEP05(2022)140 (publication) |
| Subject category | hep-ex ; Particle Physics - Experiment ; hep-ph ; Particle Physics - Phenomenology |
| Abstract | In Twin Higgs models the dominant source of fine-tuning is the cancellation of order $v^2/f^2$ required to obtain a Standard Model-like Higgs, where $v$ and $f$ are the electroweak and new physics scales, respectively. Recently proposed Gegenbauer Goldstone models naturally realise $v^2/f^2 \ll 1$ and hence remove this source of fine-tuning. By combining the two into `Gegenbauer's Twin', we obtain a symmetry-based model for Higgs sector naturalness consistent with current collider measurements without fine-tuning of parameters. Single-Higgs coupling deviations of a few percent and trilinear self-coupling deviations of order one are irreducible in the natural parameter space. Thus, notably, the fingerprints of Gegenbauer's Twin could emerge first through di-Higgs measurements at the High-Luminosity LHC. |
| Copyright/License | publication: © The Authors (License: CC-BY-4.0), sponsored by SCOAP³ preprint: (License: CC-BY-4.0) |
Corresponding record in: Inspire
Record created 2022-02-04, last modified 2024-02-19