More about F-term uplifting
- Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502 (Japan)
- Department of Physics, Tohoku University, Sendai 980-8578 (Japan)
- Department of Physics, Kyoto University, Kyoto 606-8502 (Japan)
We study moduli stabilization and a realization of de Sitter vacua in generalized F-term uplifting scenarios of the Kachru-Kallosh-Linde-Trivedi-type anti-de Sitter vacuum, where the uplifting sector X directly couples to the light Kaehler modulus T in the superpotential through, e.g., stringy instanton effects. F-term uplifting can be achieved by a spontaneous supersymmetry breaking sector, e.g., the Polonyi model, the O'Raifeartaigh model, and the Intriligator-Seiberg-Shih model. Several models with the X-T mixing are examined, and qualitative features in most models even with such mixing are almost the same as those in the Kachru-Kallosh-Linde-Trivedi scenario. One of the quantitative changes, which are relevant to the phenomenology, is a larger hierarchy between the modulus mass m{sub T} and the gravitino mass m{sub 3/2}, i.e., m{sub T}/m{sub 3/2}=O(a{sup 2}), where a{approx}4{pi}{sup 2}. In spite of such a large mass, the modulus F term is suppressed not like F{sup T}=O(m{sub 3/2}/a{sup 2}), but like F{sup T}=O(m{sub 3/2}/a) for ln(M{sub Pl}/m{sub 3/2}){approx}a, because of an enhancement factor coming from the X-T mixing. Then we typically find a mirage-mediation pattern of gaugino masses of O(m{sub 3/2}/a), while the scalar masses would be generically of O(m{sub 3/2})
- OSTI ID:
- 21027881
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 76, Issue 10; Other Information: DOI: 10.1103/PhysRevD.76.105003; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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