Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-06-29
J.Exp.Theor.Phys.91:1079-1097,2000; Zh.Eksp.Teor.Fiz.91:1251-1271,2000
Physics
High Energy Physics
High Energy Physics - Phenomenology
34 pages, 5 figures included, LaTeX 2e
Scientific paper
10.1134/1.1342876
A theoretical analysis of solutions of renormalisation group equations in the MSSM corresponding to the quasi-fixed point conditions shows that the mass of the lightest Higgs boson in this case does not exceed $94\pm 5\text{GeV}$. It means that a substantial part of the parameter space of the MSSM is practically excluded by existing experimental data from LEP II. In the NMSSM the upper bound on the lightest Higgs boson mass reaches its maximum in the strong Yukawa coupling regime, when Yukawa constants are considerably larger the gauge ones on the Grand Unification scale. In this paper a particle spectrum in a simple modification of NMSSM which leads to a self-consistent solution in the considered region of the parameter space is studied. This model allows one to get $m_h\sim 125\text{GeV}$ even for comparatively low values of $\tan\beta\ge 1.9$. For an analysis of the Higgs boson spectrum and neutralino spectrum a method for diagonalisation of mass matrices proposed formerly is used. The mass of the lightest Higgs boson in this model does not exceed $130.5\pm 3.5\text{GeV}$.
Nevzorov R. B.
Trusov M. A.
No associations
LandOfFree
Particle spectrum in the modified NMSSM in the strong Yukawa coupling limit does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Particle spectrum in the modified NMSSM in the strong Yukawa coupling limit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Particle spectrum in the modified NMSSM in the strong Yukawa coupling limit will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-331575