Weinberg angle in the neutrino-electron scattering |
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Authors: | Z Hioki |
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Institution: | 1. Max-Planck-Institut für Physik und Astrophysik, Postfach 401212, D-8000, München, Federal Republic of Germany
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Abstract: | According to my recent analysis, in which the use ofM z has been found to give a more precise sin2 θ w than the use ofG F inv μ e→v μ e scattering, I make calculations of sin2 θ w in this process withM z input including the full one-loop and all the leading log corrections. The result from the present data of cross-section σ(v μ e) = (1.55±0.20)x10?42 E v andZ boson massM z =92.6±1.7 GeV is sin2 θ w =0.228±0.016, which is in good agreement with the value 0.227±0.014 derived through the usual method from the data of \(v_\mu ,\bar v_\mu e\) and \(v_e ,\bar v_e e\) scatterings, and quite consistent with the world-average sin2 θ w=0.228±0.004. |
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