Light Higgsinos for electroweak naturalness in mirage-mediated high-scale supersymmetry
| Autor: | Jeong, Kwang Sik, Park, Chan Beom |
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| Rok vydání: | 2020 |
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| Zdroj: | Phys.ReV.D 104 (2021) 11, 115028 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevD.104.115028 |
| Popis: | Mirage mediation realized in the Kachru-Kallosh-Linde-Trivedi (KKLT) flux compactification can naturally suppress the up-type Higgs soft mass at low energy scales. As a result, compared to the conventional scenarios, the degree of electroweak fine-tuning can be reduced further up to by a loop factor if the Higgsinos are much lighter than the heavy Higgs doublet. Interestingly, this feature holds even in high-scale supersymmetry as long as the gauge coupling unification, which is required as a prerequisite for mirage mediation, accommodates such light Higgsinos. Under the experimental constraints on the observed Higgs boson, it turns out that mirage mediation can exhibit low electroweak fine-tuning better than a few percent for stops between about 2 and 6 TeV, i.e., at the same level as in the weak scale supersymmetry, if the Higgsinos are around or below a few hundred GeV. Comment: 1+18 pages, 3 figures, 1 table, 1 appendix; discussion extended, references added, matches published version |
| Databáze: | arXiv |
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