Large Top and Bottom Yukawa Couplings in Minimal Supersymmetry

Details Large Top and Bottom Yukawa Couplings in Minimal Supersymmetry Large Top and Bottom Yukawa Couplings in Minimal Supersymmetry

1994-07-05

arxiv.org/abs/hep-ph/9407229v2

Phys.Lett.B336:194-199,1994

Physics

High Energy Physics

High Energy Physics - Phenomenology

(LateX, 9p, CERN-TH.7366/94, typos in eq.13 corrected, results unchanged)

Scientific paper

10.1016/0370-2693(94)90239-9

We present analytic expressions for the top and bottom Yukawa couplings in the context of the minimal supersymmetric standard model when both couplings $h_{t,0},h_{b,0}$ are large at the unification scale. For sufficiently large $h_{t,0},h_{b,0}$, i.e. within $\sim (20-25)\% $ close to their fixed point values, using as input the central value of the bottom mass $m_b(m_b)=4.25GeV$, we find that the top mass lies in the range $m_t \approx (174-178)GeV$, while $tan\beta \approx (55-58)$. Implications on the evolution of the scalar masses and the radiative symmetry breaking scenario are discussed. %

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