How to compare the SU(5) value of sin2θw with experiments? |
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Authors: | Jisuke Kubo Susumu Sakakibara |
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Affiliation: | Institut für Physik, Universität Dortmund, 4600 Dortmund 50, Fed. Rep. Germany |
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Abstract: | We establish the relation between κsin2θw to be found from neutral-current experiments and sin2θw(Q) for Q=MW predicted by grand unified theories. We then calculate sin2θW(MW) in the minimal SU(5) model taking the MW as well as Mx threshold effects into account. We find that these two threshold effects on sin2θW(MW) cancel with each other and sin2θW(MW)=0.211± 0.005. |
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