Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2011-08-05
Physics
High Energy Physics
High Energy Physics - Phenomenology
26 pages, 24 figures, text sligtly modified,version to appear in Journal of High Energy Physics
Scientific paper
In supersymmetric standard models with multi Higgs doublet fields, selfcoupling constants in the Higgs potential come only from the D-terms at the tree level. We investigate the decoupling property of additional two heavier Higgs doublet fields in the supersymmetric standard model with four Higgs doublets. In particular, we study how they can modify the predictions on the quantities well predicted in the minimal supersymmetric standard model (MSSM), when the extra doublet fields are rather heavy to be measured at collider experiments. The B-term mixing between these extra heavy Higgs bosons and the relatively light MSSM-like Higgs bosons can significantly change the predictions in the MSSM such as on the masses of MSSM-like Higgs bosons as well as the mixing angle for the two light CP-even scalar states. We first give formulae for deviations in the observables of the MSSM in the decoupling region for the extra two doublet fields. We then examine possible deviations in the Higgs sector numerically, and discuss their phenomenological implications.
Aoki Mayumi
Kanemura Shinya
Shindou Tetsuo
Yagyu Kei
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