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/*****************************************************************************
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* Project: RooFit *
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* *
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* This code was autogenerated by RooClassFactory *
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*****************************************************************************/
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// Your description goes here...
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#include "Riostream.h"
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#include "RooSUSYPdf.h"
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#include "RooAbsReal.h"
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#include "RooAbsCategory.h"
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#include "TMath.h"
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ClassImp(RooSUSYPdf)
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RooSUSYPdf::RooSUSYPdf(const char *name, const char *title,
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RooAbsReal& _inv,
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RooAbsReal& _c,
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RooAbsReal& _s,
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RooAbsReal& _m0) :
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RooAbsPdf(name,title),
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inv("inv","inv",this,_inv),
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c("c","c",this,_c),
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s("s","s",this,_s),
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m0("m0","m0",this,_m0)
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{
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}
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RooSUSYPdf::RooSUSYPdf(const RooSUSYPdf& other, const char* name) :
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RooAbsPdf(other,name),
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inv("inv",this,other.inv),
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c("c",this,other.c),
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s("s",this,other.s),
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m0("m0",this,other.m0)
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{
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}
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Double_t RooSUSYPdf::evaluate() const
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{
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// ENTER EXPRESSION IN TERMS OF VARIABLE ARGUMENTS HERE
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//quadratic
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Double_t value = c*(
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(m0+inv)*(-s)*TMath::Exp(-0.5*(m0-inv)*(m0-inv)/(s*s))/(sqrt(TMath::TwoPi()))
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+(inv*inv+s*s)*TMath::Erf((m0-inv)/(sqrt(2)*s))/2
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+inv*s*TMath::Exp(-0.5*inv*inv/(s*s))/(sqrt(TMath::TwoPi()))
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+(inv*inv+s*s)*TMath::Erf(sqrt(2)*(inv)/(2*s))/2);
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if(value>0) return value;
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else return 0.;
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//old
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//return -c*((m0+inv)*s*TMath::Exp(-0.5*TMath::Power(c, -2)*TMath::Power(inv-m0, 2))/(sqrt(TMath::TwoPi()))+(inv*inv+s*s)*TMath::Erf(sqrt(2)*(inv-m0)/(2*s))/2)+c*(inv*s*TMath::Exp(-0.5*TMath::Power(s, -2)*TMath::Power(inv, 2))/(sqrt(TMath::TwoPi()))+(inv*inv+s*s)*TMath::Erf(sqrt(2)*(inv)/(2*s))/2);
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}
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