Calculate the partial widths of the three decay modes Z →e^+ e^-, ūu, d̅ d. Hence, predict the t

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Accepted Answer

Step 1: **Understand the Decay Width Formula**  
The partial decay width of the Z boson into a f

Calculate the partial widths of the three decay modes $\mathrm{Z} \rightarrow \mathrm{e}^{+} \mathrm{e}^{-}$, ūu, $\bar{d} d$. Hence, predict the total width of the $\mathrm{Z}$ in the standard model, assuming $\sin ^2 \theta_W=\frac{1}{4}$ and $M_Z=90 \mathrm{GeV}$. Do not forget color.