ig_slope ] = 0.818731
RooProdPdf::sig[ ptSigPdf * mllSigPdf * effSigPdf|pt ] = 0.736708

functions
--------
RooFormulaVar::effBkg[ actualVars=(pt,ab,mb,sb) formula="0.5*@1*(1+TMath::Erf((@0-@2)/@3))" ] = 0.76916
RooFormulaVar::effSig[ actualVars=(pt,as,ms,ss) formula="0.5*@1*(1+TMath::Erf((@0-@2)/@3))" ] = 0.899817

*** Print("t") ***

p.d.f.s
-------
RooAddPdf::genmodel[ Nsig * sig + Nbkg * bkg ] = 0.502276
  RooProdPdf::sig[ ptSigPdf * mllSigPdf * effSigPdf|pt ] = 0.736708
    RooExponential::ptSigPdf[ x=