Consider the prediction for the W and Z before their discovery, in round numbers m Z 90 GeV and M W 80 GeV If it is sin 2 W 0 23 with an uncertainty of 20 , what is the uncertainty on M W If we measure M Z M W with 1 uncertainty, what is the uncertainty on sin 2 W

Question: Consider the prediction for the W and Z before their discovery, in round numbers m Z = 90 GeV and M W = 80 GeV.

Consider the prediction for the W and Z before their discovery, in round numbers m_Z = 90 GeV and M_W = 80 GeV. If it is sin²θ_W ≈ 0.23 with an uncertainty of 20%, what is the uncertainty on M_W? If we measure M_Z/M_W with 1% uncertainty, what is the uncertainty on sin²θ_W?

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