+//-----------------------------------------------------------------------------
+Double_t AliPHOSRawFitterv1::Gamma2(Double_t dt,Double_t en,Double_t b,TArrayD * params){ //Function for fitting samples
+ //parameters:
+ //dt-time after start
+ //en-amplutude
+ //function parameters
+
+ Double_t ped=params->At(4) ;
+ if(dt<0.)
+ return ped ; //pedestal
+ else
+ return ped+en*(TMath::Power(dt,params->At(0))*TMath::Exp(-dt*params->At(1))+b*dt*dt*TMath::Exp(-dt*params->At(3))) ;
+}