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

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

2008-07-14

arxiv.org/abs/0807.2259v1

Phys.Rev.D78:075029,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

35 pages, 10 figures

Scientific paper

10.1103/PhysRevD.78.075029

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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