Input files from Pythia8165 + Tauola++ v1.1.4 + Photos++ v3.54 Sample size: 10Mevents Z, 10MEvents W+ W- pair, Equal BR for tau -> e, mu, pi, rho Genereated 6.Feb.2014 Pythia configuration: ----------------------- PartonLevel:FSR = off WeakDoubleBoson:ffbar2WW = on 24:onMode = off 24:onIfAny = 15 24:mMax = 125 WeakSingleBoson:ffbar2gmZ = on 23:onMode = off 23:onIfAny = 15 23:mMin = 88 23:mMax = 94 pythia.init( 2212, 2212, 8000.0); Tauola and Photos configuration: -------------------------------- Tauola::setRadiation(false); Photos::setExponentiation(true); Photos::suppressAll(true); Photos::forceBremForDecay(2,23,15,-15); Photos::forceBremForDecay(2,-24,15,-16); Photos::forceBremForDecay(2,24,-15,16); Photos::createHistoryEntries(true,3); -- Fits performed using ROOT v5.34/14, RooFit v3.59