W Pair Production at the LHC - II. One-loop Squared Corrections in the   High Energy Limit
  We present the result for the one-loop squared virtual QCD corrections to the W boson pair production in the quark-anti-quark-annihilation channel in the limit where all kinematical invariants are large compared to the mass of the W boson. The infrared pole structure is in agreement with the prediction of Catani's general formalism for the singularities of QCD amplitudes. 
G. Chachamis, M. Czakon, D. Eiras