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| | 3 | == W and H+ polarizations in top decays == |
| | 4 | 1. Generate %$e^+e^- \to t \bar t$% at threshold and force the tops to decay leptonically (to %$e$% or %$\mu$%). |
| | 5 | a. Compare the charged and neutral lepton %$p_T$% (or energy) distributions with those shown in the MC lectures. |
| | 6 | a. Explain why the neutrinos tend to have higher %$p_T$% than the charged leptons. |
| | 7 | a. How would things change if the decay went via %$t\to b H^+$% with %$m_{H^+}=m_W$%? Check by using |
| | 8 | the 2HDM (Use the on-line calculator to get a consistent set of parameters for the 2HDM). |
| | 9 | 1. As the previous exercise, but in %$pp \to t\bar t$% at the LHC. |
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| | 12 | -- Main.FabioMaltoni - 06 Dec 2008 |
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