Towards a Higgs mass determination in asymptotically safe gravity with a dark portal
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 com...
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| Main Authors: | , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
31 October 2021
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| In: |
Journal of high energy physics
Year: 2021, Issue: 10, Pages: 1-34 |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP10(2021)100 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/JHEP10(2021)100
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| Author Notes: | Astrid Eichhorn, Martin Pauly and Shouryya Ray |
| Summary: | 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 [1], 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. |
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| Item Description: | Gesehen am 15.12.2021 |
| Physical Description: | Online Resource |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP10(2021)100 |