The importance of weak boson emission at LHC

We point out that gauge bosons emissions should be carefully estimated when considering LHC observables, since real Ws and Zs contributions can dramatically change cross sections with respect to tree level values. Here we consider observables that are fully inclusive respect to soft gauge boson emission and where a certain number of nonabelian isospin charges in initial and/or final states are detected. We set up a general formalism to evaluate leading, all order resummed electroweak corrections and we consider the phenomenologically relevant case of third family quark production at the LHC. In the case of b t-bar production we find that, due to the interplay between strong and weak interactions, the production cross section can become an order of magnitude bigger than the tree level value