English

The Importance of Weak Bosons Emission at LHC

High Energy Physics - Phenomenology 2016-09-06 v2

Abstract

We point out that gauge bosons emissions should be carefully estimated when considering LHC observables, since real WsWs and ZsZs contributions can dramatically change cross sections with respect to tree level values. Here we consider observables that are fully inclusive respect to soft gauge bosons 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 btˉb\bar{t} 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.

Keywords

Cite

@article{arxiv.hep-ph/0604070,
  title  = {The Importance of Weak Bosons Emission at LHC},
  author = {Paolo Ciafaloni and Denis Comelli},
  journal= {arXiv preprint arXiv:hep-ph/0604070},
  year   = {2016}
}

Comments

13 pages, figures and text revised, final versione to be published on JHEP