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arXiv · 0807.2259

Modified Higgs Boson Phenomenology from Gauge or Gaugino Mediation in the NMSSM

David E. Morrissey·Aaron Pierce
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Abstract

In the Next-to-Minimal Supersymmetric Standard Model (NMSSM), the presence of light pseudoscalars can have a dramatic effect on the decays of the Standard Model-like Higgs boson. These pseudoscalars are naturally light if supersymmetry breaking preserves an approximate U(1)_R symmetry, spontaneously broken when the Higgs bosons take on their expectation values. We investigate two classes of theories that possess such an approximate U(1)_R at the mediation scale: deformations of gauge and gaugino mediation. In the models we consider, we find two disjoint classes of phenomenologically allowed parameter regions. One of these regions corresponds to a limit where the singlet of the NMSSM largely decouples. The other can give rise to a Standard Model-like Higgs boson with a dominant branching into light pseudoscalars.

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David E. Morrissey, Aaron Pierce. 2008-07-14. Modified Higgs Boson Phenomenology from Gauge or Gaugino Mediation in the NMSSM. https://doi.org/10.1103/physrevd.78.075029

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