More about F-term uplifting

Hiroyuki Abe, Tetsutaro Higaki, Tatsuo Kobayashi

研究成果: Article査読

58 被引用数 (Scopus)

抄録

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 Kähler 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 mT and the gravitino mass m3/2, i.e., mT/m3/2=O(a2), where a∼4π2. In spite of such a large mass, the modulus F term is suppressed not like FT=O(m3/2/a2), but like FT=O(m3/2/a) for ln (MPl/m3/2)∼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(m3/2/a), while the scalar masses would be generically of O(m3/2).

本文言語English
論文番号105003
ジャーナルPhysical Review D - Particles, Fields, Gravitation and Cosmology
76
10
DOI
出版ステータスPublished - 2007 11 5
外部発表はい

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学
  • 物理学および天文学(その他)

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