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Park, Chan Beom
순수물리이론 연구단
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Light Higgsinos for electroweak naturalness in mirage-mediated high-scale supersymmetry

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Title
Light Higgsinos for electroweak naturalness in mirage-mediated high-scale supersymmetry
Author(s)
Kwang Sik Jeong; Chan Beom Park
Publication Date
2021-12
Journal
Physical Review d, v.104, no.11, pp.115028-1 - 115028-11
Publisher
American Physical Society
Abstract
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 TeV 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.
URI
https://pr.ibs.re.kr/handle/8788114/11116
DOI
10.1103/PhysRevD.104.115028
ISSN
2470-0010
Appears in Collections:
Center for Fundamental Theory(순수물리이론 연구단) > 1. Journal Papers (저널논문)
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