Infrared Quasi Fixed Points and Mass Predictions in the MSSM II: Large tan(beta) Scenario

Abstract

We consider the infrared quasi fixed point solutions of the renormalization group equations for the Yukawa couplings and soft supersymmetry breaking parameters in the MSSM in the \underline{large $\tan \beta$} regime. The existence of IR quasi fixed points together with the values of gauge couplings, third generation quarks, lepton and Z-boson masses allows one to predict masses of the Higgs bosons and SUSY particles as functions of the only free parameter, $m_{1/2}$, or the gluino mass. The lightest Higgs boson mass for $M_{SUSY}\approx 1$ TeV is found to be $m_h=128.2-0.4-7.1\pm 5$ GeV for $\mu >0$ and $m_h=120.6-0.1-3.8\pm 5$ GeV for $\mu <0$.

15 pages, LateX file with 4 eps figures, corrected numbers, new column in table, last version

References in corpus (4)

• The Quasi-Fixed MSSM
• The Higgs mass in the MSSM infrared fixed point scenario
• Recent direct measurement of the Top quark mass and quasi-infrared fixed point
• Infra-red stability of Yukawa and soft-breaking fixed points

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