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arxiv: hep-ph/9209250 · v1 · pith:WL5LRUG7new · submitted 1992-09-18 · ✦ hep-ph

Precise predictions for mt, Vcb and tan

classification ✦ hep-ph
keywords predictionsbetaframeworklargemassadditionalallowedalpha
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The fermion mass and mixing angle predictions of a recently proposed framework are investigated for large b and $\tau$ Yukawa couplings. A new allowed region of parameters is found for this large $\tan \beta$ case. The two predictions which are substantially altered, $m_t$ and $\tan \beta$, are displayed, including the dependence on the inputs $|V_{cb}|$, $m_c$, $m_b$ and $\alpha_s$. A simple restriction on this framework yields an additional prediction, for $|V_{cb}|$. If the b,t, and $\tau$ Yukawas are equal at the GUT scale then $|\Vcb|$ is predicted and the top quark mass is constrained to lie in the range $\mt = 179. \pm 4.$ GeV.

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