Towards a Higgs mass determination in asymptotically safe gravity with a dark portal
| Autor: | Shouryya Ray, Astrid Eichhorn, Martin Pauly |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
High Energy Physics - Theory
Nuclear and High Energy Physics Top quark Particle physics Higgs Physics High Energy Physics::Lattice Physics beyond the Standard Model Spontaneous symmetry breaking FOS: Physical sciences QC770-798 General Relativity and Quantum Cosmology (gr-qc) General Relativity and Quantum Cosmology Standard Model High Energy Physics - Phenomenology (hep-ph) Nuclear and particle physics. Atomic energy. Radioactivity Models of Quantum Gravity Physics Toy model High Energy Physics::Phenomenology High Energy Physics - Phenomenology High Energy Physics - Theory (hep-th) Beyond Standard Model Higgs boson Quantum gravity Free parameter |
| Zdroj: | Journal of High Energy Physics, Vol 2021, Iss 10, Pp 1-34 (2021) Eichhorn, A, Pauly, M & Ray, S 2021, ' Towards a Higgs mass determination in asymptotically safe gravity with a dark portal ', Journal of High Energy Physics, vol. 2021, no. 10, 100 . https://doi.org/10.1007/JHEP10(2021)100 Journal of High Energy Physics |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/jhep10(2021)100 |
| Popis: | There are indications that an asymptotically safe UV completion of the Standard Model with gravity could constrain the Higgs self-coupling, resulting in a prediction of the Higgs mass close to the vacuum stability bound in the Standard Model. The predicted value depends on the top quark mass and comes out somewhat higher than the experimental value if the current central value for the top quark mass is assumed. Beyond the Standard Model, the predicted value also depends on dark fields coupled through a Higgs portal. Here we study the Higgs self-coupling in a toy model of the Standard Model with quantum gravity that we extend by a dark scalar and fermion. Within the approximations used in arXiv:2005.03661 , there is a single free parameter in the asymptotically safe dark sector, as a function of which the predicted (toy model) Higgs mass can be lowered due to mixing effects if the dark sector undergoes spontaneous symmetry breaking. 23 pages, 11 figures |
| Databáze: | OpenAIRE |
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