MSSM Higgs-Boson Production at Hadron Colliders with Explicit CP Violation

Abstract

Gluon fusion is the main production mechanism for Higgs bosons with masses up to several hundred GeV in $pp$ collisions at the CERN Large Hadron Collider. We investigate the effects of the CP-violating phases on the fusion process including both the sfermion-loop contributions and the one-loop induced CP-violating scalar-pseudoscalar mixing in the minimal supersymmetric standard model. With a universal trilinear parameter assumed, every physical observable involves only the sum of the phases of the universal trilinear parameter $A$ and the higgsino mass parameter $\mu$. The phase affects the lightest Higgs-boson production rate significantly through the neutral Higgs-boson mixing and, for the masses around the lightest stop-pair threshold, it also changes the production rate of the heavy Higgs bosons significantly through both the stop and sbottom loops and the neutral Higgs-boson mixing.

28 pages, 8 figures. Some references and comments added. Typos corrected. To appear in Phys. Rev. D

References in corpus (4)

• Higgs-Boson Two-Loop Contributions to Electric Dipole Moments in the MSSM
• Decays of the MSSM Higgs Bosons with Explicit CP Violation
• CP Phases in Correlated Production and Decay of Neutralinos in the Minimal Supersymmetric Standard Model
• Additional phases induced by the supersymmetric CP phases

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