Two-loop helicity amplitudes for the production of two off-shell electroweak bosons in quark-antiquark collisions

@article{Caola2014TwoloopHA,
  title={Two-loop helicity amplitudes for the production of two off-shell electroweak bosons in quark-antiquark collisions},
  author={F. Caola and J. Henn and K. Melnikov and A. Smirnov and V. Smirnov},
  journal={Journal of High Energy Physics},
  year={2014},
  volume={2014},
  pages={1-20}
}
  • F. Caola, J. Henn, +2 authors V. Smirnov
  • Published 2014
  • Physics
  • Journal of High Energy Physics
    • A bstractKnowledge of two-loop QCD amplitudes for processes qq′→V1V2→l1l¯1′l2l¯2′$$ qq^{\prime}\to {V}_1{V}_2\to \left({l}_1{\overline{l}}_1^{\prime}\right)\left({l}_2{\overline{l}}_2^{\prime}\right) $$ is important for improving the theoretical description of four-lepton production in hadron collisions. In this paper we compute these helicity amplitudes for all intermediate vector bosons, V1V2 = γ*γ*, W+W−, ZZ, W±Z, W±γ*, including off-shell effects and decays to leptons. 
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