Quasi-fixed point scenario in the modified NMSSM

Details Quasi-fixed point scenario in the modified NMSSM Quasi-fixed point scenario in the modified NMSSM

2003-01-21

arxiv.org/abs/hep-ph/0301179v1

Phys.Atom.Nucl. 65 (2002) 335-344; Yad.Fiz. 65 (2002) 359-368

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, 3 figures, LaTeX2e

Scientific paper

10.1134/1.1451951

The simplest extension of the MSSM that does not contradict LEP II experimental bound on the lightest Higgs boson mass at $\tan\beta\sim 1$ is the modified Next-to-Minimal Supersymmetric Standard Model (MNSSM). We investigate the renormalization of Yukawa couplings and soft SUSY breaking terms in this model. The possibility of $b$-quark and $\tau$-lepton Yukawa coupling unification at the Grand Unification scale $M_X$ is studied. The particle spectrum is analysed in the vicinity of the quasi-fixed point where the solutions of renormalization group equations are concentrated at the electroweak scale.

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