Robustness and Predictivity of 4 TeV Unification
نویسندگان
چکیده
The stability of the predictions of two of the standard model parameters, α3(MZ) and sin 2 θ(MZ), in a MU ∼ 4 TeV unification model is examined. It is concluded that varying the unification scale between MU ≃ 2.5 TeV and MU ≃ 5 TeV leaves robust all predictions within reasonable bounds. Choosing MU = 3.8± 0.4 TeV gives, at lowest order, accurate predictions at MZ . The impact of threshold effects on unification depends on the spectrum of states beyond the standard model. Typeset using REVTEX 1
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