//_____________________________________________________________________________
Gammagammaleptonpair::Gammagammaleptonpair(const inputParameters& inputParametersInstance, randomGenerator* randy, beamBeamSystem& bbsystem)
: eventChannel(inputParametersInstance, randy, bbsystem)
, _GGlepInputpidtest(inputParametersInstance.prodParticleType())
, _GGlepInputnumw(inputParametersInstance.nmbWBins())
, _GGlepInputnumy(inputParametersInstance.nmbRapidityBins())
, _GGlepInputGamma_em(inputParametersInstance.beamLorentzGamma())
{
//Initialize randomgenerator with our seed.
_randy->Rndom();
//Let us read in the luminosity tables
read();
//Now we will calculate the crosssection
twoLeptonCrossSection();
//If it is a tauon, calculate its tables
if(inputParametersInstance.prodParticleId()==starlightConstants::TAUONDECAY) calculateTable();
}
