QED radiative corrections and their impact on H -> tau tau searches at   the LHC
  In this paper we show that the excess of the tau tau events with respect to the Standard Model background predictions, observed by the ATLAS and CMS collaborations and interpreted as the evidence of the Higgs-boson decay into a pair of tau-leptons, may be accounted for by properly taking into account QED radiative corrections in the modelling of the Z/gamma* -> tau tau background. 
Mieczyslaw Witold Krasny, Stanislaw Jadach and Wieslaw Placzek
hep-ph hep-ex