5 papers
Large tan beta SUSY QCD corrections to B -> X_s gamma
Youichi Yamada
The charged-Higgs boson contributions to the Wilson coefficients C_7 and C_8, relevant for the decay B -> X_s gamma, are discussed in supersymmetric models at large tan beta. These…
Towards an exact evaluation of the supersymmetric O(alpha_s tan beta) corrections to \bar{B} -> X_s gamma
Francesca Borzumati, Christoph Greub, Youichi Yamada
The charged-Higgs contributions to the decay \bar{B} -> X_s gamma are discussed in the minimal supersymmetric standard model at large tan beta. These contributions receive two-loop…
Two-loop renormalization of tan(beta) and its gauge dependence
Youichi Yamada
Renormalization of two-loop divergent corrections to the vacuum expectation values (v_1, v_2) of the two Higgs doublets in the minimal supersymmetric standard model, and their rati…
Motivations for and Implications of Non-Universal GUT-Scale Boundary Conditions for Soft SUSY-Breaking Parameters
G. Anderson, C. H. Chen, J. F. Gunion +3
We outline several well-motivated models in which GUT boundary conditions for SUSY breaking are non-universal. The diverse phenomenological implications of the non-universality for…
Definition of beyond tree-level
Youichi Yamada
We study the relation between different renormalization schemes for the parameter in the Minimal Supersymmetric Standard Model. The contributions of the third-generation qu…