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Soft Supersymmetry Breaking at Heavy Chiral Threshold
Hiroyuki Matsuura, Hiroaki Nakano, Koichi Yoshioka
We discuss the structure of threshold corrections to soft supersymmetry-breaking parameters at the mass threshold of heavy chiral superfields. Nontrivial dependence on soft paramet…
Induced top Yukawa coupling and suppressed Higgs mass parameters
Tatsuo Kobayashi, Hiroaki Nakano, Haruhiko Terao
In the scenarios with heavy top squarks, mass parameters of the Higgs field must be fine-tuned due to a large logarithmic correction to the soft scalar mass. We consider a new poss…
Large Mass Scale by Strong Gauge Dynamics with Infrared Fixed Point
Tatsuo Kobayashi, Hiroaki Nakano, Haruhiko Terao +1
We consider a mechanism for realizing the desired decoupling of strongly-coupled sector which is supposed to generate hierarchical structure of the Yukawa couplings. In our mechani…
Non-perturbative Kahler Potential, Dilaton Stabilization and Fayet-Iliopoulos Term
Tetsutaro Higaki, Yoshiharu Kawamura, Tatsuo Kobayashi +1
We study the dilaton stabilization in models with anomalous U(1) symmetry by adding specific string-motivated, non-perturbative corrections to the tree-level dilaton Kähler potenti…
Anomalous U(1) D-term Contribution in Type I String Models
Tetsutaro Higaki, Yoshiharu Kawamura, Tatsuo Kobayashi +1
We study the -term contribution for anomalous U(1) symmetries in type I string models and derive general formula for the -term contribution, assuming that the dominant source…