t' production at the LHC

Use Software.Madgraph / Software.MadEvent to calculate the %$t'\bar t'$% and t-channel %$t'j$% production cross sections at the LHC for different %$m_{t'}$%.

1.

How do the cross section change with %$m_{t'}$%? Which one is dominating at low and high %$m_{t'}$%?

2.

Consider the case where the CKM matrix is not diagonal and the off-diagonal elements involving the %$t'$% and light quarks are not small. How do the results for production change? How do the BR's change?

-- Main.FabioMaltoni - 28 Aug 2008