# Changes between Version 1 and Version 2 of TopDecaySpinCorrelations

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Timestamp:
04/06/12 16:33:02 (8 years ago)
Comment:

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Unmodified
 v1 == W and H+ polarizations in top decays  == 1. Generate %$e^+e^- \to t \bar t$% at threshold and force the tops to decay leptonically (to %$e$% or %$\mu$%). a. Compare the charged and neutral lepton %$p_T$% (or energy) distributions with those shown in the MC lectures. a. Explain why the neutrinos tend to have higher %$p_T$% than the charged leptons. a. How would things change if the decay went via %$t\to b H^+$% with %$m_{H^+}=m_W$%? Check by using 1. Generate $e^+e^- \to t \bar t$ at threshold and force the tops to decay leptonically (to $e$ or $\mu$). a. Compare the charged and neutral lepton $p_T$ (or energy) distributions with those shown in the MC lectures. a. Explain why the neutrinos tend to have higher $p_T$ than the charged leptons. a. How would things change if the decay went via $t\to b H^+$ with $m_{H^+}=m_W$? Check by using the 2HDM (Use the on-line calculator to get a consistent set of parameters for the 2HDM). 1. As the previous exercise, but in  %$pp \to t\bar t$% at the LHC. 1. As the previous exercise, but in  $pp \to t\bar t$ at the LHC.