Speaker
Description
The measurements of associated production of a massive gauge boson with
a top-antitop quark pair at the LHC provide an important test of the
Standard Model, in particular of the top quark couplings.
To increase the precision of the theoretical predictions beyond NLO, a class of
logarithmic corrections can be taken into account with the help of
resummation methods.
In this talk results for soft gluon resummation at fixed
invariant mass for $pp \rightarrow t \bar t Z / W$ will be presented.
The resummed
results are matched
to the NLO predictions and include terms beyond next-to-leading
logarithmic accuracy.
Numerical predictions for the total inclusive cross sections and the invariant
mass distributions at the LHC will be discussed, together with
estimates of their theoretical errors .
